Name: If the sum of first n, 2n and 3n terms of an AP be S1, S2 and S3 respectively prove that S3=3(S2-S1) @AviJainClasses
Uploaded: 2026-09-24T08:17:00-05:00
Duration: 8 min 17 s
Description: If the sum of first n, 2n and 3n terms of an AP be S1, S2 and S3 respectively prove that S3=3(S2-S1)

If the sum of first n, 2n and 3n terms of an AP be S1, S2 and S3 respectively prove that S3=3(S2-S1)

Avi Jain Classes 2026-09-24 | If the sum of first n, 2n and 3n terms of an AP be S1, S2 and S3 respectively prove that S3=3(S2-S1)

Sudoku. A real classic expert level sudoku. How to solve a hard level sudoku. Hard sudoku puzzle -2

Avi Jain Classes 2021-01-24 | This is a expert level sudoku. This expert level sudoku is a real classic puzzle and you are absolutely going to love the solution of this expert sudoku puzzle.

hard sudoku, puzzle - 1: youtu.be/o1grYVfQ1kw

Sudoku. 6 expert sudoku tricks used to solve this expert sudoku. Very hard level sudoku - 3. #puzzle

Avi Jain Classes 2021-01-10 | Sudoku. Sudoku tricks. This expert sudoku puzzle from the telegraph is solved by using various expert sudoku tricks. This video will teach you the various sudoku tricks. #puzzle #puzzles #sudokutricks #sudokuavijain #avijainsudoku

The other two very hard level sudoku solved are as follows:
very hard sudoku - 1 : youtu.be/8Nicqdyrdlw
very hard sudoku - 2 : youtu.be/d3coTCUGhWg

finned x wing: youtu.be/JaKR8lrJ2_0
xyz wing: youtu.be/teWgj12r2Hg
wxyz wing : youtu.be/l6U9mqV0mdA
xy wing: youtu.be/M_aDNrw4VGA

Sudoku. How to solve hard level sudoku - 1. Detailed explanation of the sudoku tricks used. #puzzle

Avi Jain Classes 2020-12-17 | Sudoku. How to solve hard level sudoku - 1. Detailed explanation of the sudoku tricks used. #puzzle #puzzles #sudoku #sudokuavijain

This video will teach you in detail how to solve a hard level sudoku puzzle. When you are solving hard level sudoku puzzles, then you get stuck at a number of things. This puzzle will help you understand the various tricks that you must consider while solving any hard level sudoku puzzle.

hard sudoku - 2 : youtu.be/pWPzU_cokVs

This puzzle has been solved by using unique rectangles. In case you want more examples and a more detailed explanation of that tricks, here is the link for that:
youtu.be/ohruEPfAA5Q

I would also recommend you to view the following two videos before trying out the expert puzzles:
youtu.be/9a22pf72LDM

youtu.be/R8DC31DvWHM

Circles class 10 maths. In the given figure the radii of two concentric circles are 13 cm and 8 cm

Avi Jain Classes 2020-12-14 | Circles class 10. Class 10 maths chapter 10. In the given figure the radii of two concentric circles are 13 cm and 8 cm. AB is a diameter of the bigger circle and AB is a tangent to the smaller circle touching it at D. Find the length of AD.

Circles class 10 important questions.
Circles class 10 important questions with solutions.
Circles class 10 important questions with answers.

This is the eight video of our series on - "Circles class 10 important questions". Here you will get the best explanation on extra questions. The various questions from RD Sharma class 10 and RS Aggarwal class 10 will be solved with best possible explanation. These high quality videos are definitely going to help you in your cbse board exam and help you secure very good marks.

The other questions from circles class 10 are as follows:

Question - 1) A circle is touching the side BC of a triangle ABC at P and touching AB and AC produced at Q and R respectively. Class 10 maths chapter 10. Prove that AQ=1/2(Perimeter of triangle ABC).
youtu.be/2z2hEopgKZ0

Question - 2) In the given figure, XP and XQ are two tangents to the circle with centre O, drawn from an external point X. ARB is another tangent touching the circle at R. Prove that XA+AR=XB+BR.
youtu.be/6hCKmddIPts

Question - 3) A circle is inscribed in a triangle PQR with sides 10 cm, 8 cm and 12 cm. Find the lengths of QM, RN and PL.
youtu.be/KHPuyYYw98E

Question - 4) In the given figure, ABC is a right angled triangle right angled at A with AB=6 cm and AC=8cm. A circle with centre O has been inscribed inscribed inside the triangle. Calculate the value of r.
youtu.be/MWNtjP8IQys

Question - 5) ABCD is a quadrilateral such that ∠D=90. A circle C(O,r) touches the sides AB, BC, CD and DA at P, Q, R and S respectively. If BC=40 cm, CD=25 cm and BP=28 cm, find r.
youtu.be/pYwAcN7zCas

Question -6) From a point P two tangents PA and PB are drawn to a circle with centre O. If OP=2r or diameter, show that triangle APB is an equilateral triangle.
youtu.be/KxxKirHvuR0

Question - 7) In the given figure, from an external point P a tangent PT and a line segment PAB are drawn to a circle with centre O. ON is perpendicular to AB. Prove that -(1) PA.PB=PN^2-AN^2, (2) PN^2-AN^2=OP^2-OT^2, (3) PA.PB=PT^2.
youtu.be/AmggJo8DAr8

Circles class 10 important questions. In the given figure, from an external point P a tangent PT

Avi Jain Classes 2020-12-12 | Circles class 10. Class 10 maths chapter 10. Circles class 10 important questions with answers. In the given figure, from an external point P a tangent PT and a line segment PAB are drawn to a circle with centre O. ON is perpendicular to AB. Prove that -(1) PA.PB=PN^2-AN^2, (2) PN^2-AN^2=OP^2-OT^2, (3) PA.PB=PT^2.

Circles class 10 important questions.
Circles class 10 important questions with solutions.
Circles class 10 important questions with answers.

This is the eight video of our series on - "Circles class 10 important questions". Here you will get the best explanation on extra questions. The various questions from RD Sharma class 10 and RS Aggarwal class 10 will be solved with best possible explanation. These high quality videos are definitely going to help you in your cbse board exam and help you secure very good marks.

The other questions from circles class 10 are as follows:

Question - 1) A circle is touching the side BC of a triangle ABC at P and touching AB and AC produced at Q and R respectively. Class 10 maths chapter 10. Prove that AQ=1/2(Perimeter of triangle ABC).
youtu.be/2z2hEopgKZ0

Question - 2) In the given figure, XP and XQ are two tangents to the circle with centre O, drawn from an external point X. ARB is another tangent touching the circle at R. Prove that XA+AR=XB+BR.
youtu.be/6hCKmddIPts

Question - 3) A circle is inscribed in a triangle PQR with sides 10 cm, 8 cm and 12 cm. Find the lengths of QM, RN and PL.
youtu.be/KHPuyYYw98E

Question - 4) In the given figure, ABC is a right angled triangle right angled at A with AB=6 cm and AC=8cm. A circle with centre O has been inscribed inscribed inside the triangle. Calculate the value of r.
youtu.be/MWNtjP8IQys

Question - 5) ABCD is a quadrilateral such that ∠D=90. A circle C(O,r) touches the sides AB, BC, CD and DA at P, Q, R and S respectively. If BC=40 cm, CD=25 cm and BP=28 cm, find r.
youtu.be/pYwAcN7zCas

Question -6) From a point P two tangents PA and PB are drawn to a circle with centre O. If OP=2r or diameter, show that triangle APB is an equilateral triangle.
youtu.be/KxxKirHvuR0

Question - 7)

Circles class 10. From a point P two tangents PA and PB are drawn to a circle with centre O.

Avi Jain Classes 2020-12-11 | Circles class 10. Class 10 maths chapter 10. From a point P two tangents PA and PB are drawn to a circle with centre O. If OP=2r or diameter, show that triangle APB is an equilateral triangle.

Circles class 10 important questions.
Circles class 10 important questions with solutions.
Circles class 10 important questions with answers.

This is the sixth video of our series on - "Circles class 10 important questions". Here you will get the best explanation on extra questions. The various questions from RD Sharma class 10 and RS Aggarwal class 10 will be solved with best possible explanation. These high quality videos are definitely going to help you in your cbse board exam and help you secure very good marks.

The other questions from circles class 10 are as follows:

Question - 1) A circle is touching the side BC of a triangle ABC at P and touching AB and AC produced at Q and R respectively. Class 10 maths chapter 10. Prove that AQ=1/2(Perimeter of triangle ABC).
youtu.be/2z2hEopgKZ0

Question - 2) In the given figure, XP and XQ are two tangents to the circle with centre O, drawn from an external point X. ARB is another tangent touching the circle at R. Prove that XA+AR=XB+BR.
youtu.be/6hCKmddIPts

Question - 3) A circle is inscribed in a triangle PQR with sides 10 cm, 8 cm and 12 cm. Find the lengths of QM, RN and PL.
youtu.be/KHPuyYYw98E

Question - 4) In the given figure, ABC is a right angled triangle right angled at A with AB=6 cm and AC=8cm. A circle with centre O has been inscribed inscribed inside the triangle. Calculate the value of r.
youtu.be/MWNtjP8IQys

Question - 5) ABCD is a quadrilateral such that ∠D=90. A circle C(O,r) touches the sides AB, BC, CD and DA at P, Q, R and S respectively. If BC=40 cm, CD=25 cm and BP=28 cm, find r.
youtu.be/pYwAcN7zCas

Circles class 10. ABCD is a quadrilateral such that ∠D=90. A circle C(O,r) touches the sides AB, BC

Avi Jain Classes 2020-12-10 | Circles class 10. ABCD is a quadrilateral such that ∠D=90. A circle C(O,r) touches the sides AB, BC, CD and DA at P, Q, R and S respectively. If BC=40 cm, CD=25 cm and BP=28 cm, find r.

Circles class 10 important questions.
Circles class 10 important questions with solutions.
Circles class 10 important questions with answers.

This is the fifth video of our series on - "Circles class 10 important questions". Here you will get the best explanation on extra questions. The various questions from RD Sharma class 10 and RS Aggarwal class 10 will be solved with best possible explanation. These high quality videos are definitely going to help you in your cbse board exam and help you secure very good marks.

The other questions from circles class 10 are as follows:

Question - 1) A circle is touching the side BC of a triangle ABC at P and touching AB and AC produced at Q and R respectively. Class 10 maths chapter 10. Prove that AQ=1/2(Perimeter of triangle ABC).
youtu.be/2z2hEopgKZ0

Question - 2) In the given figure, XP and XQ are two tangents to the circle with centre O, drawn from an external point X. ARB is another tangent touching the circle at R. Prove that XA+AR=XB+BR.
youtu.be/6hCKmddIPts

Question - 3) A circle is inscribed in a triangle PQR with sides 10 cm, 8 cm and 12 cm. Find the lengths of QM, RN and PL.
youtu.be/KHPuyYYw98E

Question - 4) In the given figure, ABC is a right angled triangle right angled at A with AB=6 cm and AC=8cm. A circle with centre O has been inscribed inscribed inside the triangle. Calculate the value of r.
youtu.be/MWNtjP8IQys

Question - 6) From a point P two tangents PA and PB are drawn to a circle with centre O. If OP=2r or diameter, show that triangle APB is an equilateral triangle.
youtu.be/KxxKirHvuR0

Circles Class 10. In the given figure, ABC is a right angled triangle right angled at A with AB=6 cm

Avi Jain Classes 2020-12-09 | Circles Class 10. Class 10 maths Chapter 10. Circles class 10 important questions. In the given figure, ABC is a right angled triangle right angled at A with AB=6 cm and AC=8cm. A circle with centre O has been inscribed inscribed inside the triangle. Calculate the value of r.

Circles class 10 important questions.
Circles class 10 important questions with solutions.
Circles class 10 important questions with answers.

This is the fourth video of our series on - "Circles class 10 important questions". Here you will get the best explanation on extra questions. The various questions from RD Sharma class 10 and RS Aggarwal class 10 will be solved with best possible explanation. These high quality videos are definitely going to help you in your cbse board exam and help you secure very good marks.

The other questions from circles class 10 are as follows:

Question - 1) A circle is touching the side BC of a triangle ABC at P and touching AB and AC produced at Q and R respectively. Class 10 maths chapter 10. Prove that AQ=1/2(Perimeter of triangle ABC).
youtu.be/2z2hEopgKZ0

Question - 2) In the given figure, XP and XQ are two tangents to the circle with centre O, drawn from an external point X. ARB is another tangent touching the circle at R. Prove that XA+AR=XB+BR.
youtu.be/6hCKmddIPts

Question - 3) A circle is inscribed in a triangle PQR with sides 10 cm, 8 cm and 12 cm. Find the lengths of QM, RN and PL.
youtu.be/KHPuyYYw98E

Circles class 10. A circle is inscribed in a triangle PQR with PQ=10 cm. Class 10 maths chapter 10.

Avi Jain Classes 2020-12-08 | Circles class 10. Class 10 maths chapter 10. Circles class 10 important questions. A circle is inscribed in a triangle PQR with sides 10 cm, 8 cm and 12 cm. Find the lengths of QM, RN and PL.
Circles class 10 important questions.
Circles class 10 important questions with solutions.
Circles class 10 important questions with answers.
This is the third video of our series on - "Circles class 10 important questions". Here you will get the best explanation on extra questions. The various questions from RD Sharma class 10 and RS Aggarwal class 10 will be solved with best possible explanation. These high quality videos are definitely going to help you in your cbse board exam and help you secure very good marks.

The other questions from circles class 10 are as follows:

Question - 1) A circle is touching the side BC of a triangle ABC at P and touching AB and AC produced at Q and R respectively. Class 10 maths chapter 10. Prove that AQ=1/2(Perimeter of triangle ABC).
youtu.be/2z2hEopgKZ0

Question - 2) In the given figure, XP and XQ are two tangents to the circle with centre O, drawn from an external point X. ARB is another tangent touching the circle at R. Prove that XA+AR=XB+BR.
youtu.be/6hCKmddIPts

Question - 4) In the given figure, ABC is a right angled triangle right angled at A with AB=6 cm and AC=8cm. A circle with centre O has been inscribed inscribed inside the triangle. Calculate the value of r.
youtu.be/MWNtjP8IQys

Circles class 10. XP and XQ are two tangents to a circle with centre O. Prove that XA+AR=XB+BR.

Avi Jain Classes 2020-12-07 | Circles class 10. Class 10 maths chapter 10. Circles class 10 important questions. In the given figure XP and XQ are two tangents to a circle with centre O. NCERT exemplar class 10 maths. In the given figure, XP and XQ are two tangents to the circle with centre O, drawn from an external point X. ARB is another tangent touching the circle at R. Prove that XA+AR=XB+BR.
Circles class 10 important questions.
Circles class 10 important questions with solutions.
Circles class 10 important questions with answers.
This is the second video of our series on - "Circles class 10 important questions". Here you will get the best explanation on extra questions. The various questions from RD Sharma class 10 and RS Aggarwal class 10 will be solved with best possible explanation. These high quality videos are definitely going to help you in your cbse board exam and help you secure very good marks.

The other questions from circles class 10 are as follows:

Question 1) A circle is touching the side BC of a triangle ABC at P and touching AB and AC produced at Q and R respectively. Class 10 maths chapter 10. Prove that AQ=1/2(Perimeter of triangle ABC).
youtu.be/2z2hEopgKZ0

Question - 3) A circle is inscribed in a triangle PQR with sides 10 cm, 8 cm and 12 cm. Find the lengths of QM, RN and PL.
youtu.be/KHPuyYYw98E

Question - 4) In the given figure, ABC is a right angled triangle right angled at A with AB=6 cm and AC=8cm. A circle with centre O has been inscribed inscribed inside the triangle. Calculate the value of r.
youtu.be/MWNtjP8IQys

Circles class 10. A circle is touching the side BC of a triangle ABC at P and touching AB and AC at

Avi Jain Classes 2020-12-07 | Circles class 10. Class 10 maths chapter 10. Circles class 10 important questions. A circle is touching the side BC of a triangle ABC at P and touching AB and AC produced at Q and R respectively. Class 10 maths chapter 10. Prove that AQ=1/2(Perimeter of triangle ABC).
Circles class 10 important questions.
Circles class 10 important questions with solutions.
Circles class 10 important questions with answers.
This is the first video of our series on - "Circles class 10 important questions". Here you will get the best explanation on extra questions. The various questions from RD Sharma class 10 and RS Aggarwal class 10 will be solved with best possible explanation. These high quality videos are definitely going to help you in your cbse board exam and help you secure very good marks.

The other questions from circles class 10 are as follows:

Question - 2) In the given figure, XP and XQ are two tangents to the circle with centre O, drawn from an external point X. ARB is another tangent touching the circle at R. Prove that XA+AR=XB+BR.
youtu.be/6hCKmddIPts

Question - 3) A circle is inscribed in a triangle PQR with sides 10 cm, 8 cm and 12 cm. Find the lengths of QM, RN and PL.
youtu.be/KHPuyYYw98E

Question - 4) In the given figure, ABC is a right angled triangle right angled at A with AB=6 cm and AC=8cm. A circle with centre O has been inscribed inscribed inside the triangle. Calculate the value of r.
youtu.be/MWNtjP8IQys

Sudoku very hard level. Puzzle -2. How to solve very hard sudoku using sudoku tricks #puzzle #sudoku

Avi Jain Classes 2020-12-04 | Sudoku very hard level. Puzzle -2. How to solve very hard sudoku using sudoku tricks #puzzle #sudoku. Sudoku very hard level puzzles. Sudoku extremely hard puzzles. Sudoku tricks. Sudoku techniques. Sudoku tips for very hard puzzles. Very hard sudoku tips #sudokuavijain #puzzle #puzzles

This is the second video of our series from "very hard level sudoku'. This puzzle is an extremely difficult puzzle and the various expert sudoku tricks and techniques that are used to solve this puzzle are also explained in a brief manner. However, if you want to understand the various sudoku tricks and techniques in detail then you can click on the following links:

Sudoku very hard level, puzzle -1 : youtu.be/8Nicqdyrdlw
very hard sudoku puzzle solved, puzzle - 3: youtu.be/m1t2cK4-Qaw

The different expert sudoku tricks and sudoku techniques are as follows:
XY wing: youtu.be/teWgj12r2Hg
XYZ WING: youtu.be/a9rFqQ9zwW4
Unique rectangles: youtu.be/ohruEPfAA5Q
WXYZ Wing: youtu.be/l6U9mqV0mdA
Extended WXYZ Wing: youtu.be/nYrZME25NoA
X wing: youtu.be/fhHDY2fLcdw

The other expert level and hard level sudoku puzzles with the different expert sudoku tricks are as follows:

Very hard level sudoku, video - 1: youtu.be/8Nicqdyrdlw
Very hard level sudoku, video -2: youtu.be/d3coTCUGhWg

expert sudoku solved, level 1 - youtu.be/caAVJp36ZhA
expert sudoku solved, level 2 - youtu.be/AOA6icJzv2Y
expert sudoku solved, level 3 - youtu.be/9bTfTLmb22I
expert sudoku solved, level 4 - youtu.be/a640mmCOG7M
expert sudoku solved, level 5 - youtu.be/S5p8MBV6jVI
expert sudoku solved, level 6 - youtu.be/XsXthbw5YJo
expert sudoku solved, level 7 - youtu.be/p5VwwmDr4Hc
expert sudoku solved, level 8 - youtu.be/l6U9mqV0mdA
expert sudoku solved, level 9 - youtu.be/8Nicqdyrdlw
expert sudoku solved, level 10 -

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Sudoku. Very hard sudoku solved with just 1 sudoku technique. Sudoku tricks. Sudoku expert #puzzle

Avi Jain Classes 2020-11-29 | Sudoku. Very hard sudoku solved with just 1 sudoku technique. Sudoku tricks. How to solve sudoku expert level. Expert level sudoku. How to solve a very hard sudoku. Techniques for very hard sudoku. Sudoku expert
#sudokuavijain #puzzle
This video will teach an amazing sudoku trick and technique that will help you to solve a very extreme and hard level sudoku puzzle. This puzzle looked so hard, but we solved it with just one trick. These tricks are absolutely essential when you get stuck on any expert level or a very hard level sudoku puzzles. This may be thought of an extension of xy wing and zyz wing and wxyz wing sudoku technique. Please see the expert sudoku trick till the last and get a bit more capable of solving such puzzles.

In case, you haven't yet seen the WXYZ Wing, then here is the link:
youtu.be/l6U9mqV0mdA

The other various sudoku expert level tricks and expert sudoku techniques that we have already uploaded on our channel are as follows:
X WING sudoku trick: youtu.be/fhHDY2fLcdw
Finned X wing sudoku trick: youtu.be/JaKR8lrJ2_0
Skyscraper sudoku trick: youtu.be/rUJ3qujvsSE
Swordfish sudoku trick: youtu.be/y9ekwlcKgoU
XY Wing sudoku: youtu.be/teWgj12r2Hg
XYZ Wing sudoku: youtu.be/a9rFqQ9zwW4
Unique Rectangles: youtu.be/ohruEPfAA5Q
WXYZ Wing sudoku: youtu.be/l6U9mqV0mdA
Extended WXYZ Wing sudoku trick : youtu.be/nYrZME25NoA
Two sector disjoint subsets: youtu.be/bbQ05fl45D8

The other expert level and hard level sudoku puzzles with the different expert sudoku tricks are as follows:
expert sudoku solved, level 1 - youtu.be/caAVJp36ZhA
expert sudoku solved, level 2 - youtu.be/AOA6icJzv2Y
expert sudoku solved, level 3 - youtu.be/9bTfTLmb22I
expert sudoku solved, level 4 - youtu.be/a640mmCOG7M
expert sudoku solved, level 5 - youtu.be/S5p8MBV6jVI
expert sudoku solved, level 6 - youtu.be/XsXthbw5YJo
expert sudoku solved, level 7 - youtu.be/p5VwwmDr4Hc
expert sudoku solved, level 8 - youtu.be/l6U9mqV0mdA
expert sudoku solved, level 9 - youtu.be/8Nicqdyrdlw

Sudoku very hard level. Very hard sudoku tricks and techniques. Very hard sudoku tips #puzzle

Avi Jain Classes 2020-11-28 | Sudoku very hard level. Very hard sudoku tricks and techniques. How to solve very hard sudoku puzzles. Sudoku very hard level puzzles. Sudoku extremely hard puzzles. Sudoku tricks. Sudoku techniques. Sudoku tips for very hard puzzles. Very hard sudoku tips #sudokuavijain #puzzle

Very hard sudoku puzzle solved, puzzle - 2: youtu.be/d3coTCUGhWg
very hard sudoku puzzle solved, puzzle - 3: youtu.be/m1t2cK4-Qaw

This is the first video of our new series - "very hard sudoku sudoku puzzles". Here, I have tried to explain all the tricks that are used to solve the hard sudoku puzzle in detail. This video will help you a lot in understanding how to solve an extremely difficult sudoku puzzles. This is an absolutely brain teaser puzzle.

The different expert sudoku tricks and sudoku techniques are as follows:
Unique rectangles: youtu.be/ohruEPfAA5Q
XYZ WING: youtu.be/a9rFqQ9zwW4
Finned x wing: youtu.be/JaKR8lrJ2_0
XY wing: youtu.be/teWgj12r2Hg

The other expert level and hard level sudoku puzzles with the different expert sudoku tricks are as follows:
expert sudoku solved, level 1 - youtu.be/caAVJp36ZhA
expert sudoku solved, level 2 - youtu.be/AOA6icJzv2Y
expert sudoku solved, level 3 - youtu.be/9bTfTLmb22I
expert sudoku solved, level 4 - youtu.be/a640mmCOG7M
expert sudoku solved, level 5 - youtu.be/S5p8MBV6jVI
expert sudoku solved, level 6 - youtu.be/XsXthbw5YJo
expert sudoku solved, level 7 - youtu.be/p5VwwmDr4Hc
expert sudoku solved, level 8 - youtu.be/l6U9mqV0mdA
expert sudoku solved, level 9 - youtu.be/8Nicqdyrdlw

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Sudoku. How to solve expert level sudoku. Sudoku expert level tricks. Hard sudoku puzzles #puzzle.

Avi Jain Classes 2020-11-25 | Sudoku. How to solve expert level sudoku. Sudoku expert level tricks. Hard sudoku puzzles.
This video teaches us how to solve an expert level sudoku and a hard level sudoku. The expert sudoku trick used in this video makes this expert level sudoku look so easy. This video teaches you how to solve an expert sudoku puzzle with a step by step explanation. You can also search 'sudoku avi jain' for various other sudoku puzzles that we have solved.
sudokuavijain #puzzle
The expert trick used in this puzzle is skyscraper, the detailed explanation of which you will get in the following link:
youtu.be/rUJ3qujvsSE

The link to the other expert sudoku trick - unique rectangles sudoku technique , talked about in this video is as follows:
youtu.be/ohruEPfAA5Q

The following are the other expert level sudoku puzzles that we have already solved in our channel:
expert sudoku solved, level 1 - youtu.be/caAVJp36ZhA
expert sudoku solved, level 2 - youtu.be/AOA6icJzv2Y
expert sudoku solved, level 3 - youtu.be/9bTfTLmb22I
expert sudoku solved, level 4 - youtu.be/a640mmCOG7M
expert sudoku solved, level 5 - youtu.be/S5p8MBV6jVI
expert sudoku solved, level 6 - youtu.be/XsXthbw5YJo
expert sudoku solved, level 7 - youtu.be/p5VwwmDr4Hc
expert sudoku solved, level 8 - youtu.be/l6U9mqV0mdA

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SUDOKU

sudoku tricks. sudoku hard level tips and tricks: wxyz wing. sudoku expert level tricks #puzzle

Avi Jain Classes 2020-11-21 | sudoku tricks. sudoku hard level tips. sudoku tips and tricks: wxyz wing. sudoku expert level tricks. sudoku hard.
#puzzle #brain teaser games #sudoku #brain teaser puzzles
This video is the eight video of our series on solving expert level sudoku. This video will give you the tips to solve the hard level of sudoku. The sudoku tips and tricks in this video will take you one step further to solve the expert level sudoku and hard level sudoku puzzle. This hard sudoku tip which we call the wxyz wing sudoku trick is explained in detail in this video and the conditions needed for applying this sudoku trick and the eliminations that we get from this expert sudoku trick is also discussed in detail. You are absolutely going to love this video.

The various other hard level and expert level sudoku puzzles that we have already solved are:

expert sudoku solved, level 1 - youtu.be/caAVJp36ZhA
expert sudoku solved, level 2 - youtu.be/AOA6icJzv2Y
expert sudoku solved, level 3 - youtu.be/9bTfTLmb22I
expert sudoku solved, level 4 - youtu.be/a640mmCOG7M
expert sudoku solved, level 5 - youtu.be/S5p8MBV6jVI
expert sudoku solved, level 6 - youtu.be/XsXthbw5YJo
expert sudoku solved, level 7 - youtu.be/p5VwwmDr4Hc
expert sudoku solved, level 8 - youtu.be/l6U9mqV0mdA

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Sudoku tricks. Expert sudoku tricks. Test your sudoku - part 3. Sudoku techniques #puzzle

Avi Jain Classes 2020-11-17 | Sudoku tricks. Expert sudoku tricks. Sudoku techniques for expert sudoku. Test your sudoku - part 3.
#puzzle #brain teaser puzzles #brain teaser games
This video features 5 expert sudoku puzzles for you. You can take these 5 puzzles as a test for your sudoku knowledge to see if you can get their answer. There is also a brief explanation of the expert sudoku tricks that are used to solve these expert level sudoku puzzles. Also, this is the third video of "test your sudoku skills". This series is particularly designed to enable you to practice the expert puzzles and perticularly the expert tricks used in these puzzles.

X Wing sudoku trick: youtu.be/ydkALO2Tkxk
XY Wing sudoku trick: youtu.be/teWgj12r2Hg
XYZ Wing sudoku trick: youtu.be/a9rFqQ9zwW4

Test your sudoku (part - 1): youtu.be/yG-yBBozh_k
Test your sudoku (part - 2): youtu.be/0WFnVWL40sg
Test your sudoku - part 3.- youtu.be/24d4jx5WPgc

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sudoku tips and tricks. sudoku hard level tips - xy wing sudoku trick. sudoku tricks #puzzle

Avi Jain Classes 2020-11-14 | sudoku tips and tricks. sudoku hard level tips - xy wing sudoku trick. sudoku tricks and techniques. Sudoku Trick.
#sudokuavijain #puzzle #brainteaserpuzzles

This is a very important trick if you are you are looking to solve expert level and a hard level sudoku puzzle. This xy wing technique helps us to eleiminate a partricular digit from a common visible cell and helps us to reach to the final solution of any expert level and hard level sudoku puzzle. This is one of the most important trick and technique to solve the sudoku puzzle. Without this particular trick, it is very difficult to solve some expert puzzles. So, this is one of the must know trick for sudoku.
The expert sudoku tricks are:
x wing sudoku trick: youtu.be/ydkALO2Tkxk
finned x wing sudoku trick : youtu.be/JaKR8lrJ2_0
skyscraper sudoku trick : youtu.be/rUJ3qujvsSE
swordfish sudoku trick : youtu.be/y9ekwlcKgoU
xy wing sudoku trick : youtu.be/teWgj12r2Hg
xyz wing sudoku trick : youtu.be/a9rFqQ9zwW4
unique rectangles sudoku trick : youtu.be/ohruEPfAA5Q
two sector disjoint sets sudoku trick : youtu.be/bbQ05fl45D8

This video clears the following questions as well:
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Sudoku tricks. Sudoku tips and tricks. Test your sudoku-2. XYZ Wing Sudoku trick #puzzle #sudoku

Avi Jain Classes 2020-11-09 | Sudoku tricks. Sudoku tips and tricks. Test your sudoku-2. XYZ Wing Sudoku trick
#sudokuavijain #puzzle #sudoku
This is the second video of our "test your sudoku'. This video deals with 5 expert sudoku puzzles and you need to find out the exact sudoku trick which we need to apply to solve the puzzle further. This video also explains the expert sudoku trick that needs to be applied here.
#sudoku #expertsudoku #expertsudokubyavisir

XYZ Wing - youtu.be/a9rFqQ9zwW4
XY Wing - youtu.be/M_aDNrw4VGA

Test your sudoku part - 1: youtu.be/0WFnVWL40sg
Test your sudoku part - 3 : youtu.be/24d4jx5WPgc

Sudoku tricks. Sudoku tricks for expert level sudoku. Test your sudoku-1. Sudoku techniques #puzzle

Avi Jain Classes 2020-11-02 | Sudoku tricks. Sudoku tips and tricks. Tricks to solve sudoku puzzle. Expert sudoku trick.
#sudokuavijain #puzzle
This video teaches you an expert sudoku trick in the minimum of time. Also, you can take these three puzzles as a test of yourself if you know the various expert sudoku tricks. This is definitely going to be fun. This video gives you the opportunity to learn maximum with the minimum time. What more do you want as a sudoku puzzle solver, especially if you are interested in solving expert puzzles. This video will not only teach you the trick but will also give you some puzzles to apply those tricks for practice.
#sudoku #puzzle #sudokutrickbyavisir #sudokuavijainclasses

The video link from where you can learn about the XY Wing in detail is:
youtu.be/M_aDNrw4VGA

The various expert puzzles that we have already solved are as follows:
Expert sudoku solved Level 1: youtu.be/caAVJp36ZhA
Expert sudoku solved Level 2: youtu.be/AOA6icJzv2Y
Expert sudoku solved Level 3: youtu.be/9bTfTLmb22I
Expert sudoku solved Level 4: youtu.be/a640mmCOG7M
Expert sudoku solved Level 5: youtu.be/S5p8MBV6jVI
Expert sudoku solved Level 6: youtu.be/XsXthbw5YJo
Expert sudoku solved Level 7: youtu.be/bbQ05fl45D8
Expert sudoku solved level 8: youtu.be/p5VwwmDr4Hc

Sudoku expert level tricks. Sudoku expert level. How to solve sudoku expert level #puzzle

Avi Jain Classes 2020-10-28 | Sudoku 'expert' level tricks. Sudoku expert level. How to solve sudoku expert level. 'expert' sudoku. Sudoku 'expert' level puzzle. Sudoku hard level tips. sudoku tricks.
#sudokuavijain #puzzle
This expert level sudoku has been solved by a combination of xy wing and a special pattern of unique rectangles that you are definitely going to love. The expert tricks that are used to solve this expert sudoku puzzle has been explained in a very summarised manner. To know about the two expert sudoku tricks in detail, the links are as follows:
#puzzle #sudoku #hardsudoku #expertsudoku #sudokuavijain #avijainsudoku
This is an expert sudoku puzzle which has been solved in the most easiest way possible. This video is the seventh video of our sudoku series and this video along with other expert puzzle videos will help you in solving an expert and a very hard sudoku puzzle. The link to the expert sudoku trick that I have mentioned in the puzzle is as follows:
Unique Rectangles: youtu.be/ohruEPfAA5Q

The various other hard level and expert level sudoku puzzles that we have already solved are:

expert sudoku solved, level 1 - youtu.be/caAVJp36ZhA
expert sudoku solved, level 2 - youtu.be/AOA6icJzv2Y
expert sudoku solved, level 3 - youtu.be/9bTfTLmb22I
expert sudoku solved, level 4 - youtu.be/a640mmCOG7M
expert sudoku solved, level 5 - youtu.be/S5p8MBV6jVI
expert sudoku solved, level 6 - youtu.be/XsXthbw5YJo
expert sudoku solved, level 7 - youtu.be/p5VwwmDr4Hc
expert sudoku solved, level 8 - youtu.be/l6U9mqV0mdA

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Sudoku | sudoku challenge | Can I fill the sudoku puzzle in less than 3 minutes ? #puzzle #sudoku

Avi Jain Classes 2020-10-23 | Sudoku. In this video, I am trying to solve the puzzle as fast as I can. This is a medium level sudoku puzzle. Definitely, solving in a newspaper or a mobile app would have been much easier and less time consuming. But, I have tried here and I hope you all are going to like this. This is just for entertainment purpose. There is no way in this world that I am trying to assert myself as a sudoku expert in any manner. Thanks in advance. The various expert level puzzles that we have uploaded are as follows:

Expert sudoku solved Level 1: youtu.be/caAVJp36ZhA
Expert sudoku solved Level 2: youtu.be/AOA6icJzv2Y
Expert sudoku solved Level 3: youtu.be/9bTfTLmb22I
Expert sudoku solved Level 4: youtu.be/a640mmCOG7M
Expert sudoku solved Level 5: youtu.be/S5p8MBV6jVI
Expert sudoku solved Level 6: youtu.be/XsXthbw5YJo
Expert sudoku solved Level 7: youtu.be/NeL9FSl5TNw

sudoku tricks. sudoku hard level tips. sudoku tricks: unique rectangles sudoku technique #puzzle

Avi Jain Classes 2020-10-21 | sudoku tricks. sudoku hard level tips. sudoku tips. sudoku trick - unique rectangles sudoku technique.
#sudokuavijain #puzzle
This video gives you two advanced expert sudoku puzzles with the tips to solve them. Dont miss the video. You are going to absolutely love the way the expert sudoku puzzles have been solved.

The other expert and hard sudoku puzzles from the current series of hard sudoku solved are as follows:

Expert sudoku solved Level 1: youtu.be/caAVJp36ZhA
Expert sudoku solved Level 2: youtu.be/AOA6icJzv2Y
Expert sudoku solved Level 3: youtu.be/9bTfTLmb22I
Expert sudoku solved Level 4: youtu.be/a640mmCOG7M
Expert sudoku solved Level 5: youtu.be/S5p8MBV6jVI
Expert sudoku solved Level 6: youtu.be/XsXthbw5YJo
Expert sudoku solved Level 7: youtu.be/bbQ05fl45D8

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Sudoku tricks. Sudoku hard level tips. Hard Sudoku techniques : Su De Coq sudoku trick. #puzzle

Avi Jain Classes 2020-10-19 | Sudoku tricks. Sudoku hard level tips. Hard Sudoku techniques : Su De Coq sudoku trick. Sudoku hard level. sudoku tips and tricks. sudoku expert level tricks.
#sudokuavijain #sudoku #hardsudoku #expertsudoku #avijainsudoku #puzzle
Sudoku techniques in hindi | Sudoku solving techniques in hindi | Expert sudoku techniques in hindi |

The other expert sudoku tricks are:
x wing sudoku trick: youtu.be/ydkALO2Tkxk
finned x wing sudoku trick : youtu.be/JaKR8lrJ2_0
skyscraper sudoku trick : youtu.be/rUJ3qujvsSE
swordfish sudoku trick : youtu.be/y9ekwlcKgoU
xy wing sudoku trick : youtu.be/teWgj12r2Hg
xyz wing sudoku trick : youtu.be/a9rFqQ9zwW4
unique rectangles sudoku trick : youtu.be/ohruEPfAA5Q
two sector disjoint sets sudoku trick : youtu.be/bbQ05fl45D8
The other expert and hard sudoku puzzles from the current series of hard sudoku solved are as follows:

Expert sudoku solved Level 1: youtu.be/caAVJp36ZhA
Expert sudoku solved Level 2: youtu.be/AOA6icJzv2Y
Expert sudoku solved Level 3: youtu.be/9bTfTLmb22I
Expert sudoku solved Level 4: youtu.be/a640mmCOG7M
Expert sudoku solved Level 5: youtu.be/S5p8MBV6jVI
Expert sudoku solved Level 6: youtu.be/XsXthbw5YJo
Expert sudoku solved Level 7: youtu.be/bbQ05fl45D8
Expert sudoku solved level 8: youtu.be/p5VwwmDr4Hc

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Hard sudoku puzzle made easy. Hard sudoku - Level - 6. Hard sudoku puzzle solved. #puzzle #sudoku

Avi Jain Classes 2020-10-15 | Hard sudoku puzzle made easy | Hard sudoku | Hard sudoku puzzle | Hard sudoku solved | #puzzle #sudoku #hardsudoku #expertsudoku #sudokuavijain #avijainsudoku
Hi everyone. This is a really hard puzzle which has been solved in the most easiest way possible. This video is the sixth video of our sudoku series and this video along with other expert puzzle videos will help you in solving an expert and a very hard sudoku puzzle. The links to the various tricks that I have mentioned in the puzzle are as follows:
Finned X Wing: youtu.be/JaKR8lrJ2_0
Skyscraper: youtu.be/rUJ3qujvsSE
Unique Rectangles: youtu.be/ohruEPfAA5Q

The other expert and hard sudoku puzzles from the current series of hard sudoku solved are as follows:
Hard sudoku made easy Level 1: youtu.be/caAVJp36ZhA
Hard sudoku made easy Level 2: youtu.be/AOA6icJzv2Y
Hard sudoku made easy Level 3: youtu.be/9bTfTLmb22I
Hard sudoku made easy Level 4: youtu.be/a640mmCOG7M
Hard sudoku made easy Level 5: youtu.be/S5p8MBV6jVI
Hard sudoku made easy Level 6: youtu.be/XsXthbw5YJo
Hard sudoku made easy, level 7 - youtu.be/p5VwwmDr4Hc
Hard sudoku made easy, level 8 - youtu.be/l6U9mqV0mdA

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Prove that (1-sin theta + cos theta)^(2)=2(1+cos theta)(1-sin theta) | RD Sharma-Example 13 |

Avi Jain Classes 2020-10-05 | Prove that (1-sin theta+cos theta)^(2)=2(1+cos theta)(1-sin theta) | Prove that (1-sina+cosa)^2=2(1+cosa)(1-sina) | prove that (1-sinθ+cosθ) 2 =2 (1+cosθ)(1-sinθ) |RD Sharma-Example 13 |
#trigonometryclass10avijainclasses #trigonometryavijainclasses #trigonometry #trigonometryclass10

R D Sharma - Example 12 | Prove that ((sinA-sinB)/(cosA+cosB))+((cosA-cosB)/(sinA+sinB))=0 |

Avi Jain Classes 2020-10-03 | Trigonometry class 10 | Prove that ((sinA-sinB)/(cosA+cosB))+((cosA-cosB)/(sinA+sinB))=0 | Prove that sina-sinb/cosa+cosb+cosa-cosb/sina+sinb=0 | RD Sharma example - 12 |

#trigonometryclass10avijainclasses #trigonometryavijainclasses #trigonometry #trigonometryclass10

Here we have started the series for trigonometry extra questions. And you are going to get a complete set of extra questions that you must study. This series of questions for trigonometry class 10 will help you to understand the conceptual study of trigonometry. The other questions that you must study for trigonometry class 10 are as follows:

Q-1:
Prove the following trigonometric identities | R S Aggarwal example 1 |
youtu.be/kXiFs67qpRo

Q-2:
Prove that (tan theta+sin theta)/(tan theta-sin theta)=(sec theta+1)/(sec theta-1)
youtu.be/ggoTor38_mk

Q-3:
Prove that 1/(1+sin theta)+1/(1-sin theta)=2 sec^(2)theta
youtu.be/RHVHFxml0bU

Q-4:
Exercise 8.4 class 10 question 5 part 2
youtu.be/DyQTCl78ing

Q-5:
Prove that cos theta/(1+sin theta)=(1-sin theta)/cos theta
youtu.be/PHJjDNrHOdk

Q-6:
Prove that sin theta/(1-cos theta)=(cosec theta+cot theta)
youtu.be/PHJjDNrHOdk

Q-7:
Prove that (1-sin theta)/(1+sin theta)=(sec theta-tan theta)^2
youtu.be/DIIzmq9XAyw

Q-8:
Prove that root(1+sin theta/1- sin theta)+root(1-sin theta/1+sin theta)=2 sec theta
youtu.be/-Dg15cV4QIM

Q-9:
Prove that root (1+sin theta/1-sin theta)=sec theta+tan theta. Exercise 8.4 question 5(vi)
youtu.be/xPcQWvjRkRw

Q-10:
Prove that cosec theta/(cosec theta-1)+cosec theta/(cosec theta+1)=2sec^2 theta
youtu.be/EWdcTUTXNDo

Q-11:
Prove that cos theta/(1-tan theta)+sin theta/(1-cot theta)=sin theta+cos theta
youtu.be/y5gErSebi_s

Q-12:
Exercise 8.4 question 5 part 3 | Prove that tan theta/(1-cot theta) + cot theta/(1-tan theta)=1+sec theta cosec theta
youtu.be/mrxuKbWOB4Q

Q-13:
RS Aggarwal Example-5 | Prove that (1+cota-coseca)(1+tana+seca)=2
youtu.be/idjF1K9Yhb4

Q-14:
RD Sharma Example-7 | Prove that sin theta/(1-cos theta)+tan theta/(1+cos theta)=sec theta cosec theta+cot theta
youtu.be/rfw7evZv-PU

Q-15:
RD Sharma - Example-11 | Prove that cosa/(1-tana)+sin^2a/(sina-cosa)=sina+cosa
youtu.be/ojfV-NIOWVc

Q-16(a):
If sec theta + tan theta=p, show that p^2-1/p^2+1=sin theta
youtu.be/8ApXZsvKGFo

Q-16(b):
If 3 sin theta + 5 cos theta=5, prove that 5 sin theta-3 cos theta=+-3
youtu.be/MhJ7H1Ftn68

Q-17:
If acosθ bsinθ=c prove that asinθ+bcosθ= ±√a2+b2-c2
youtu.be/qJ-ISB_jcIo

Q-18:
If sec theta=x+1/4x, show that sec theta+tan theta=2x or 1/2x
youtu.be/UMPD50LoQ1c

Q-19:
prove that 1/(cosec theta - cot theta)-1/sin theta=1/sin theta-1/(cosec theta + cot theta)
youtu.be/f1fVIqxfFKM

Q-20:
If cos theta+sin theta=√2 cos theta, then show that cosθ-sinθ = √ 2sinθ
youtu.be/kKBjGWanCZU

Q-21:
If tan theta=p/q, show that (p sin theta-q cos theta)/(p sin theta+q cos theta)=(p^2-q^2)/(p^2+q^2)
youtu.be/oI3iIUZ4cdE

Q-22:
Prove that sin theta / cot theta+cosec theta=2+sin theta/cot theta-cosec theta
youtu.be/BTfSFmPK9K0

Q-23:
If sin theta + sin^2 theta = 1, show that cos^2 theta + cos^4 theta = 1
youtu.be/RFw6GPJFSfc

Q-24:
Prove that sin^6x+cos^6x=1-3 sin^2x cos^2x
youtu.be/rZ6lH3YLnSM

Q-25:
prove that sec theta + tan theta -1/tan theta-sec theta+1= cos theta/1-sin theta
youtu.be/HxJPEILW_FA

Q-26:
If 7sin^2 theta+3cos^2 theta=4 show that tan theta= 1/√3
youtu.be/nW0q5kYLQHg

Q-27:
If x sin^3 theta + y cos^3 theta = sin theta cos theta , prove that x^2+y^2=1
youtu.be/TIaqW3KN7Dw

Q-28:
Prove that sin theta +cos theta /sin theta - cos theta +sin theta - cos theta /sin theta +cos theta=2 sec square theta /tan square theta -1
youtu.be/fCImXufL9Lg

Q-29:
Prove that tan2A-tan2B=sin2A-sin2B/cos2Acos2B=cos2B-cos2A/cos2Acos2B
youtu.be/TY3FgZoTOFs

Q-30:
If a+b=90 then prove that root tanAtanB+tanAcotB/sinAsecB-sin2B/cos2A=tanA
youtu.be/9Ixpj6ztSRM

Q-31:
If tana=ntanb and sina=msinb prove that cos^2a=m^2-1/n^2-1
youtu.be/le0SSRGUiho

Q-32:
Prove that (1+sina-cosa/1+sina+cosa)^2=1-cosa/1+cosa
youtu.be/MFZnAlva98Y

Q-33:
If cosec theta - sin theta = l and sec theta - cos theta = m, then prove that l^2m^2(l^2+m^2+3)=1
youtu.be/VyP6DOuR7c4

Q-34:
If √3 cot^2θ - 4cotθ+ √3 =0, then find the value of cot^2θ + tan^2θ
youtu.be/qXCZ-DotlJ0

Q-35:
If tan theta+sin theta=m and tan theta-sin theta=n then prove that m^(2)-n^(2)=4sqrt(mn)
youtu.be/IysoLp2gy3k

Q-36:
If 1+sin^2 theta=3 sin theta cos theta, then prove that tan theta=1 or 1/2.
youtu.be/Z7ahEn6b8ZE

Q-37:
If tan theta+sec theta=l, then prove that sec theta=(l^2)+(1/2l)
youtu.be/ZL3jy41luB8

Prove that cot^2a(seca-1/1+sina)+sec2a(sina-1/1+seca)=0 | RS Aggarwal trigonometry - Question 32 |

Avi Jain Classes 2020-10-01 | RS Aggarwal trigonometry solutions | Question 32 | Prove that cot^2 theta(sec theta-1/1+sin theta) + sec2 theta(sin theta-1/1+sec theta)=0 |
prove that cot^2a(seca-1/1+sina)+sec2a(sina-1/1+seca)=0 | Trigonometry class 10 | Trigonometry class 10 important questions |

#trigonometryclass10avijainclasses #trigonometryavijainclasses #trigonometry #trigonometryclass10

Here we have started the series for trigonometry extra questions. And you are going to get a complete set of extra questions that you must study. This series of questions for trigonometry class 10 will help you to understand the conceptual study of trigonometry. The other questions that you must study for trigonometry class 10 are as follows:

Q-1:
Prove the following trigonometric identities | R S Aggarwal example 1 |
youtu.be/kXiFs67qpRo

Q-2:
Prove that (tan theta+sin theta)/(tan theta-sin theta)=(sec theta+1)/(sec theta-1)
youtu.be/ggoTor38_mk

Q-3:
Prove that 1/(1+sin theta)+1/(1-sin theta)=2 sec^(2)theta
youtu.be/RHVHFxml0bU

Q-4:
Exercise 8.4 class 10 question 5 part 2
youtu.be/DyQTCl78ing

Q-5:
Prove that cos theta/(1+sin theta)=(1-sin theta)/cos theta
youtu.be/PHJjDNrHOdk

Q-6:
Prove that sin theta/(1-cos theta)=(cosec theta+cot theta)
youtu.be/PHJjDNrHOdk

Q-7:
Prove that (1-sin theta)/(1+sin theta)=(sec theta-tan theta)^2
youtu.be/DIIzmq9XAyw

Q-8:
Prove that root(1+sin theta/1- sin theta)+root(1-sin theta/1+sin theta)=2 sec theta
youtu.be/-Dg15cV4QIM

Q-9:
Prove that root (1+sin theta/1-sin theta)=sec theta+tan theta. Exercise 8.4 question 5(vi)
youtu.be/xPcQWvjRkRw

Q-10:
Prove that cosec theta/(cosec theta-1)+cosec theta/(cosec theta+1)=2sec^2 theta
youtu.be/EWdcTUTXNDo

Q-11:
Prove that cos theta/(1-tan theta)+sin theta/(1-cot theta)=sin theta+cos theta
youtu.be/y5gErSebi_s

Q-12:
Exercise 8.4 question 5 part 3 | Prove that tan theta/(1-cot theta) + cot theta/(1-tan theta)=1+sec theta cosec theta
youtu.be/mrxuKbWOB4Q

Q-13:
RS Aggarwal Example-5 | Prove that (1+cota-coseca)(1+tana+seca)=2
youtu.be/idjF1K9Yhb4

Q-14:
RD Sharma Example-7 | Prove that sin theta/(1-cos theta)+tan theta/(1+cos theta)=sec theta cosec theta+cot theta
youtu.be/rfw7evZv-PU

Q-15:
RD Sharma - Example-11 | Prove that cosa/(1-tana)+sin^2a/(sina-cosa)=sina+cosa
youtu.be/ojfV-NIOWVc

Q-16(a):
If sec theta + tan theta=p, show that p^2-1/p^2+1=sin theta
youtu.be/8ApXZsvKGFo

Q-16(b):
If 3 sin theta + 5 cos theta=5, prove that 5 sin theta-3 cos theta=+-3
youtu.be/MhJ7H1Ftn68

Q-17:
If acosθ bsinθ=c prove that asinθ+bcosθ= ±√a2+b2-c2
youtu.be/qJ-ISB_jcIo

Q-18:
If sec theta=x+1/4x, show that sec theta+tan theta=2x or 1/2x
youtu.be/UMPD50LoQ1c

Q-19:
prove that 1/(cosec theta - cot theta)-1/sin theta=1/sin theta-1/(cosec theta + cot theta)
youtu.be/f1fVIqxfFKM

Q-20:
If cos theta+sin theta=√2 cos theta, then show that cosθ-sinθ = √ 2sinθ
youtu.be/kKBjGWanCZU

Q-21:
If tan theta=p/q, show that (p sin theta-q cos theta)/(p sin theta+q cos theta)=(p^2-q^2)/(p^2+q^2)
youtu.be/oI3iIUZ4cdE

Q-22:
Prove that sin theta / cot theta+cosec theta=2+sin theta/cot theta-cosec theta
youtu.be/BTfSFmPK9K0

Q-23:
If sin theta + sin^2 theta = 1, show that cos^2 theta + cos^4 theta = 1
youtu.be/RFw6GPJFSfc

Q-24:
Prove that sin^6x+cos^6x=1-3 sin^2x cos^2x
youtu.be/rZ6lH3YLnSM

Q-25:
prove that sec theta + tan theta -1/tan theta-sec theta+1= cos theta/1-sin theta
youtu.be/HxJPEILW_FA

Q-26:
If 7sin^2 theta+3cos^2 theta=4 show that tan theta= 1/√3
youtu.be/nW0q5kYLQHg

Q-27:
If x sin^3 theta + y cos^3 theta = sin theta cos theta , prove that x^2+y^2=1
youtu.be/TIaqW3KN7Dw

Q-28:
Prove that sin theta +cos theta /sin theta - cos theta +sin theta - cos theta /sin theta +cos theta=2 sec square theta /tan square theta -1
youtu.be/fCImXufL9Lg

Q-29:
Prove that tan2A-tan2B=sin2A-sin2B/cos2Acos2B=cos2B-cos2A/cos2Acos2B
youtu.be/TY3FgZoTOFs

Q-30:
If a+b=90 then prove that root tanAtanB+tanAcotB/sinAsecB-sin2B/cos2A=tanA
youtu.be/9Ixpj6ztSRM

Q-31:
If tana=ntanb and sina=msinb prove that cos^2a=m^2-1/n^2-1
youtu.be/le0SSRGUiho

Q-32:
Prove that (1+sina-cosa/1+sina+cosa)^2=1-cosa/1+cosa
youtu.be/MFZnAlva98Y

Q-33:
If cosec theta - sin theta = l and sec theta - cos theta = m, then prove that l^2m^2(l^2+m^2+3)=1
youtu.be/VyP6DOuR7c4

Q-34:
If √3 cot^2θ - 4cotθ+ √3 =0, then find the value of cot^2θ + tan^2θ
youtu.be/qXCZ-DotlJ0

Q-35:
If tan theta+sin theta=m and tan theta-sin theta=n then prove that m^(2)-n^(2)=4sqrt(mn)
youtu.be/IysoLp2gy3k

Q-36:
If 1+sin^2 theta=3 sin theta cos theta, then prove that tan theta=1 or 1/2.
youtu.be/Z7ahEn6b8ZE

Q-37:
If tan theta+sec theta=l, then prove that sec theta=(l^2)+(1/2l)
youtu.be/ZL3jy41luB8

Prove that sin theta(1+tan theta)+cos theta(1+cot theta)=sec theta+cosec theta | Trigonometry |

Avi Jain Classes 2020-09-30 | RS Aggarwal Trigonometry- Question No.7 | Trigonometry class 10 | Prove that sin theta(1+tan theta)+cos theta(1+cot theta)=sec theta+cosec theta | prove that sina(1+tana)+cosa(1+cota)=seca+coseca | Trigonometry class 10 important questions |

#trigonometryclass10avijainclasses #trigonometryavijainclasses #trigonometry #trigonometryclass10

Here we have started the series for trigonometry extra questions. And you are going to get a complete set of extra questions that you must study. This series of questions for trigonometry class 10 will help you to understand the conceptual study of trigonometry. The other questions that you must study for trigonometry class 10 are as follows:

Q-1:
Prove the following trigonometric identities | R S Aggarwal example 1 |
youtu.be/kXiFs67qpRo

Q-2:
Prove that (tan theta+sin theta)/(tan theta-sin theta)=(sec theta+1)/(sec theta-1)
youtu.be/ggoTor38_mk

Q-3:
Prove that 1/(1+sin theta)+1/(1-sin theta)=2 sec^(2)theta
youtu.be/RHVHFxml0bU

Q-4:
Exercise 8.4 class 10 question 5 part 2
youtu.be/DyQTCl78ing

Q-5:
Prove that cos theta/(1+sin theta)=(1-sin theta)/cos theta
youtu.be/PHJjDNrHOdk

Q-6:
Prove that sin theta/(1-cos theta)=(cosec theta+cot theta)
youtu.be/PHJjDNrHOdk

Q-7:
Prove that (1-sin theta)/(1+sin theta)=(sec theta-tan theta)^2
youtu.be/DIIzmq9XAyw

Q-8:
Prove that root(1+sin theta/1- sin theta)+root(1-sin theta/1+sin theta)=2 sec theta
youtu.be/-Dg15cV4QIM

Q-9:
Prove that root (1+sin theta/1-sin theta)=sec theta+tan theta. Exercise 8.4 question 5(vi)
youtu.be/xPcQWvjRkRw

Q-10:
Prove that cosec theta/(cosec theta-1)+cosec theta/(cosec theta+1)=2sec^2 theta
youtu.be/EWdcTUTXNDo

Q-11:
Prove that cos theta/(1-tan theta)+sin theta/(1-cot theta)=sin theta+cos theta
youtu.be/y5gErSebi_s

Q-12:
Exercise 8.4 question 5 part 3 | Prove that tan theta/(1-cot theta) + cot theta/(1-tan theta)=1+sec theta cosec theta
youtu.be/mrxuKbWOB4Q

Q-13:
RS Aggarwal Example-5 | Prove that (1+cota-coseca)(1+tana+seca)=2
youtu.be/idjF1K9Yhb4

Q-14:
RD Sharma Example-7 | Prove that sin theta/(1-cos theta)+tan theta/(1+cos theta)=sec theta cosec theta+cot theta
youtu.be/rfw7evZv-PU

Q-15:
RD Sharma - Example-11 | Prove that cosa/(1-tana)+sin^2a/(sina-cosa)=sina+cosa
youtu.be/ojfV-NIOWVc

Q-16(a):
If sec theta + tan theta=p, show that p^2-1/p^2+1=sin theta
youtu.be/8ApXZsvKGFo

Q-16(b):
If 3 sin theta + 5 cos theta=5, prove that 5 sin theta-3 cos theta=+-3
youtu.be/MhJ7H1Ftn68

Q-17:
If acosθ bsinθ=c prove that asinθ+bcosθ= ±√a2+b2-c2
youtu.be/qJ-ISB_jcIo

Q-18:
If sec theta=x+1/4x, show that sec theta+tan theta=2x or 1/2x
youtu.be/UMPD50LoQ1c

Q-19:
prove that 1/(cosec theta - cot theta)-1/sin theta=1/sin theta-1/(cosec theta + cot theta)
youtu.be/f1fVIqxfFKM

Q-20:
If cos theta+sin theta=√2 cos theta, then show that cosθ-sinθ = √ 2sinθ
youtu.be/kKBjGWanCZU

Q-21:
If tan theta=p/q, show that (p sin theta-q cos theta)/(p sin theta+q cos theta)=(p^2-q^2)/(p^2+q^2)
youtu.be/oI3iIUZ4cdE

Q-22:
Prove that sin theta / cot theta+cosec theta=2+sin theta/cot theta-cosec theta
youtu.be/BTfSFmPK9K0

Q-23:
If sin theta + sin^2 theta = 1, show that cos^2 theta + cos^4 theta = 1
youtu.be/RFw6GPJFSfc

Q-24:
Prove that sin^6x+cos^6x=1-3 sin^2x cos^2x
youtu.be/rZ6lH3YLnSM

Q-25:
prove that sec theta + tan theta -1/tan theta-sec theta+1= cos theta/1-sin theta
youtu.be/HxJPEILW_FA

Q-26:
If 7sin^2 theta+3cos^2 theta=4 show that tan theta= 1/√3
youtu.be/nW0q5kYLQHg

Q-27:
If x sin^3 theta + y cos^3 theta = sin theta cos theta , prove that x^2+y^2=1
youtu.be/TIaqW3KN7Dw

Q-28:
Prove that sin theta +cos theta /sin theta - cos theta +sin theta - cos theta /sin theta +cos theta=2 sec square theta /tan square theta -1
youtu.be/fCImXufL9Lg

Q-29:
Prove that tan2A-tan2B=sin2A-sin2B/cos2Acos2B=cos2B-cos2A/cos2Acos2B
youtu.be/TY3FgZoTOFs

Q-30:
If a+b=90 then prove that root tanAtanB+tanAcotB/sinAsecB-sin2B/cos2A=tanA
youtu.be/9Ixpj6ztSRM

Q-31:
If tana=ntanb and sina=msinb prove that cos^2a=m^2-1/n^2-1
youtu.be/le0SSRGUiho

Q-32:
Prove that (1+sina-cosa/1+sina+cosa)^2=1-cosa/1+cosa
youtu.be/MFZnAlva98Y

Q-33:
If cosec theta - sin theta = l and sec theta - cos theta = m, then prove that l^2m^2(l^2+m^2+3)=1
youtu.be/VyP6DOuR7c4

Q-34:
If √3 cot^2θ - 4cotθ+ √3 =0, then find the value of cot^2θ + tan^2θ
youtu.be/qXCZ-DotlJ0

Q-35:
If tan theta+sin theta=m and tan theta-sin theta=n then prove that m^(2)-n^(2)=4sqrt(mn)
youtu.be/IysoLp2gy3k

Q-36:
If 1+sin^2 theta=3 sin theta cos theta, then prove that tan theta=1 or 1/2.
youtu.be/Z7ahEn6b8ZE

Q-37:
If tan theta+sec theta=l, then prove that sec theta=(l^2)+(1/2l)
youtu.be/ZL3jy41luB8

Exercise 8.4 Question 5 part 6. Ex 8.4 Q5 (vi). Prove that root (1+sin theta/1-sin theta)=sec theta+

Avi Jain Classes 2020-09-14 | Exercise 8.4 Question 5 part 6. Ex 8.4 Q5 (vi). Prove that root (1+sin theta/1-sin theta)=sec theta+tan theta. This is a very important question for students of class 10 appearing for the board examination. This video teaches in detail all the concepts that you need to know for solving this question.
#trigonometryclass10avijainclasses #trigonometryavijainclasses #trigonometry #trigonometryclass10

Here we have started the series for trigonometry extra questions. And you are going to get a complete set of extra questions that you must study. This series of questions for trigonometry class 10 will help you to understand the conceptual study of trigonometry. The other questions that you must study for trigonometry class 10 are as follows:

Question 1:
Prove the following trigonometric identities | R S Aggarwal example 1 |
youtu.be/kXiFs67qpRo

Question 2:
Prove that (tan theta + sin theta)/(tan theta - sin theta) = (sec theta +1)/(sec theta -1).
youtu.be/ggoTor38_mk

Question 3:
Prove that 1/(1+sin theta)+1/(1-sin theta)=2 sec^(2)theta
youtu.be/RHVHFxml0bU

Question 4:
Exercise 8.4 class 10 question 5 part 2.
youtu.be/DyQTCl78ing

Question 5:
Prove that cos theta/(1+sin theta)=(1-sin theta)/cos theta. Prove that (1-cos theta)/sin theta=sin theta/(1+cos theta).
youtu.be/PHJjDNrHOdk

Question 6:
Prove that sin theta/(1-cos theta)=(cosec theta+cot theta)
youtu.be/PHJjDNrHOdk

Question 7:
Prove that (1-sin theta)/(1+sin theta)=(sec theta-tan theta)^2
youtu.be/DIIzmq9XAyw

Question 8:
Prove that root(1+sin theta/1- sin theta)+root(1-sin theta/1+sin theta)=2 sec theta.
youtu.be/-Dg15cV4QIM

Question 9:
Prove that root (1+sin theta/1-sin theta)=sec theta+tan theta. Exercise 8.4 question 5(vi).
youtu.be/xPcQWvjRkRw

Question 10:
Prove that cosec theta/(cosec theta-1) + cosec theta/(cosec theta+1)=2sec^2 theta.
youtu.be/EWdcTUTXNDo

Question 11:
Prove that cos theta/1-tan theta + sin theta/1-cot theta=sin theta+cos theta.
youtu.be/y5gErSebi_s

Prove that root(1+sin theta/1- sin theta)+root(1-sin theta/1+sin theta)=2 sec theta | Trigonometry |

Avi Jain Classes 2020-09-13 | Example 27-RS Aggarwal. Prove that root(1+sin theta/1- sin theta)+root(1-sin theta/1+sin theta)=2 sec theta | Trigonometry | Trigonometry class 10 important questions |
#trigonometryclass10avijainclasses #trigonometryavijainclasses #trigonometry #trigonometryclass10 #trigonometrybyavisir

Here we have started the series for trigonometry extra questions. And you are going to get a complete set of extra questions that you must study. This series of questions for trigonometry class 10 will help you to understand the conceptual study of trigonometry. The other questions that you must study for trigonometry class 10 are as follows:

Q-1:
Prove the following trigonometric identities | R S Aggarwal example 1 |
youtu.be/2NSvA-zs6vo

Q-2:
Prove that (tan theta + sin theta)/(tan theta - sin theta) = (sec theta +1)/(sec theta -1).
youtu.be/zP0rLYZm7UU

Q-3:
Prove that 1/(1+sin theta)+1/(1-sin theta)=2 sec^(2)theta
youtu.be/kmIGQ-_Gg3g

Q-4:
Exercise 8.4 class 10 question 5 part 2.
youtu.be/uTnKYraaCVI

Q-5:
Prove that cos theta/(1+sin theta)=(1-sin theta)/cos theta. Prove that (1-cos theta)/sin theta=sin theta/(1+cos theta).
youtu.be/ns_wsl1RrOU

Q-6:
Prove that sin theta/(1-cos theta)=(cosec theta+cot theta)
youtu.be/0w0TbS5E3Us

Q-7:
Prove that (1-sin theta)/(1+sin theta)=(sec theta-tan theta)^2
youtu.be/EAuvgYJJiF8

Q-8:
Prove that root(1+sin theta/1- sin theta)+root(1-sin theta/1+sin theta)=2 sec theta.
youtu.be/-Dg15cV4QIM

Q-9:
Prove that root (1+sin theta/1-sin theta)=sec theta+tan theta. Exercise 8.4 question 5(vi).
youtu.be/m2z4_-iAfHk

Q-10:
Prove that cosec theta/(cosec theta-1) + cosec theta/(cosec theta+1)=2sec^2 theta.
youtu.be/a2QSf8CT0vY

Q-11:
Prove that cos theta/1-tan theta + sin theta/1-cot theta=sin theta+cos theta.
youtu.be/KmCZG3rDdjE

Q-12:
prove that tan theta/1-cot theta+cot theta/1-tan theta=1+sec theta cosec theta. Ex 8.4 Question 5 (iii):

Q-13:
Prove that (1+cota-coseca)(1+tana+seca)=2. Prove that (1+cotθ-cosecθ)(1+tanθ+secθ)=2
youtu.be/a0cUvDtJrfA

Q -14:
RD Sharma Example-7 | Prove that sin theta/(1-cos theta)+tan theta/(1+cos theta)=sec theta cosec theta+cot theta
youtu.be/udZRRe0esE8

Q -15:
RD Sharma Exercise 11.1 class 10 Example-11. Prove that cosa/1-tana+sin2a/sina-cosa=sina+cosa.
youtu.be/dPqDRjhV8UQ

Q-16(a):
If sec theta + tan theta=p, show that p^2-1/p^2+1=sin theta
youtu.be/1wiNjbz8kOA

Q-16(b):
If 3 sin theta + 5 cos theta=5, prove that 5 sin theta-3 cos theta=+-3
youtu.be/IDGoGt39i-Q

Q-17:
If acosθ bsinθ=c prove that asinθ+bcosθ= ±√a2+b2-c2
youtu.be/gHs2RSeUikQ

Q-18:
If sec theta=x+1/4x, show that sec theta+tan theta=2x or 1/2x
youtu.be/YwW2a16OahI

Q-19:
prove that 1/(cosec theta - cot theta)-1/sin theta=1/sin theta-1/(cosec theta + cot theta)
youtu.be/f1fVIqxfFKM

Q-20:
If cos theta+sin theta=√2 cos theta, then show that cosθ-sinθ = √ 2sinθ
youtu.be/sLt9eGuO10E

Q-21:
If tan theta=p/q, show that (p sin theta-q cos theta)/(p sin theta+q cos theta)=(p^2-q^2)/(p^2+q^2)
youtu.be/4i14Izdyuqw

Q-22:
Prove that sin theta / cot theta+cosec theta=2+sin theta/cot theta-cosec theta
youtu.be/BTfSFmPK9K0

Q-23:
If sin theta + sin^2 theta = 1, show that cos^2 theta + cos^4 theta = 1
youtu.be/RFw6GPJFSfc

Q-24:
Prove that sin^6x+cos^6x=1-3 sin^2x cos^2x
youtu.be/WTjT24tbIi0

Q-25:
prove that sec theta + tan theta -1/tan theta-sec theta+1= cos theta/1-sin theta
youtu.be/TWU_TcQ0uKw

Q-26:
If 7sin^2 theta+3cos^2 theta=4 show that tan theta= 1/√3
youtu.be/nW0q5kYLQHg

Q-27:
If x sin^3 theta + y cos^3 theta = sin theta cos theta , prove that x^2+y^2=1
youtu.be/TIaqW3KN7Dw

Q-28:
Prove that sin theta +cos theta /sin theta - cos theta +sin theta - cos theta /sin theta +cos theta=2 sec square theta /tan square theta -1
youtu.be/fCImXufL9Lg

Q-29:
Prove that tan2A-tan2B=sin2A-sin2B/cos2Acos2B=cos2B-cos2A/cos2Acos2B
youtu.be/YgaLP6Yt9uY

Q-30:
If a+b=90 then prove that root tanAtanB+tanAcotB/sinAsecB-sin2B/cos2A=tanA
youtu.be/9Ixpj6ztSRM

Q-31:
If tana=ntanb and sina=msinb prove that cos^2a=m^2-1/n^2-1
youtu.be/rcDfhSn5vwk

Q-32:
Prove that (1+sina-cosa/1+sina+cosa)^2=1-cosa/1+cosa
youtu.be/MFZnAlva98Y

Q-33:
If cosec theta - sin theta = l and sec theta - cos theta = m, then prove that l^2m^2(l^2+m^2+3)=1
youtu.be/VyP6DOuR7c4

Q-34:
If √3 cot^2θ - 4cotθ+ √3 =0, then find the value of cot^2θ + tan^2θ
youtu.be/qXCZ-DotlJ0

Q-35:
If tan theta+sin theta=m and tan theta-sin theta=n then prove that m^(2)-n^(2)=4sqrt(mn)
youtu.be/IysoLp2gy3k

Q-36:
If 1+sin^2 theta=3 sin theta cos theta, then prove that tan theta=1 or 1/2.
youtu.be/odlbSXJezJg

Q-37:
If tan theta+sec theta=l, then prove that sec theta=(l^2)+(1/2l)

Prove that 1-sina/1+sina=(seca-tana)^2. Prove that 1-sintheta/1+sintheta=(sectheta-tantheta)^2.

Avi Jain Classes 2020-09-09 | Example 5- RD Sharma. Prove that 1-sina/1+sina=(seca-tana)^2. Prove that 1-sintheta/1+sintheta=(sectheta-tantheta)^2. Trigonometry. Trigonometry class 10 important questions.
#trigonometryclass10avijainclasses #trigonometryavijainclasses #trigonometry #trigonometryclass10

Here we have started the series for trigonometry extra questions. And you are going to get a complete set of extra questions that you must study. This series of questions for trigonometry class 10 will help you to understand the conceptual study of trigonometry. The other questions that you must study for trigonometry class 10 are as follows:

Question 1)
RS Aggarwal Trigonometry solutions, Example - 1 -13a.
youtu.be/2NSvA-zs6vo

Question 2)
Prove that tana+sina/tana-sina=seca+1/seca-1.
youtu.be/zP0rLYZm7UU

Question 3)
Prove that (1)/(1+sin theta)+(1)/(1-sin theta)=2 sec^(2)theta.
youtu.be/kmIGQ-_Gg3g

Question 4)
Exercise 8.4 question 5 part 2 | RBSE Ex 7.1 Question 9.
youtu.be/uTnKYraaCVI

Question 5)
Prove that 1-cos theta/sin theta=sin theta/1+cos theta.
youtu.be/ns_wsl1RrOU

Question 6)
Prove that sin theta/1-cos theta = cosec theta+cot theta.
youtu.be/0w0TbS5E3Us

Question 7)
Prove that 1-sina/1+sina=(seca-tana)^2.
youtu.be/DIIzmq9XAyw

Question 8)
Prove that root(1+sin theta/1- sin theta)+root(1-sin theta/1+sin theta)=2 sec theta. youtu.be/-Dg15cV4QIM

Question 9)
Prove that root ((1+sin theta)/(1-sin theta))=sec theta+tan theta.
youtu.be/m2z4_-iAfHk

Question 10)
Prove that cosec theta/(cosec theta-1) + cosec theta/(cosec theta+1)=2sec^2 theta.
youtu.be/a2QSf8CT0vY

Question 11:
Prove that cos theta/1-tan theta + sin theta/1-cot theta=sin theta+cos theta.
youtu.be/y5gErSebi_s

Prove the following trigonometric identities | Trigonometry Class 10 | R S Aggarwal Example 1 |

Avi Jain Classes 2020-09-04 | Prove the following trigonometric identities | Trigonometry Class 10 | R S Aggarwal solutions | R S Aggarwal example 1 | Trigonometry class 10 important questions.
#trigonometryclass10avijainclasses #trigonometryavijainclasses #trigonometry #trigonometryclass10

Here we have started the series for trigonometry extra questions. And you are going to get a complete set of extra questions that you must study. This series of questions for trigonometry class 10 will help you to understand the conceptual study of trigonometry. The other questions that you must study for trigonometry class 10 are as follows:

Q-1:
Prove the following trigonometric identities | R S Aggarwal example 1 |
youtu.be/2NSvA-zs6vo

Q-2:
Prove that (tan theta + sin theta)/(tan theta - sin theta) = (sec theta +1)/(sec theta -1).
youtu.be/zP0rLYZm7UU

Q-3:
Prove that 1/(1+sin theta)+1/(1-sin theta)=2 sec^(2)theta
youtu.be/kmIGQ-_Gg3g

Q-4:
Exercise 8.4 class 10 question 5 part 2.
youtu.be/uTnKYraaCVI

Q-5:
Prove that cos theta/(1+sin theta)=(1-sin theta)/cos theta. Prove that (1-cos theta)/sin theta=sin theta/(1+cos theta).
youtu.be/ns_wsl1RrOU

Q-6:
Prove that sin theta/(1-cos theta)=(cosec theta+cot theta)
youtu.be/0w0TbS5E3Us

Q-7:
Prove that (1-sin theta)/(1+sin theta)=(sec theta-tan theta)^2
youtu.be/EAuvgYJJiF8

Q-8:
Prove that root(1+sin theta/1- sin theta)+root(1-sin theta/1+sin theta)=2 sec theta.
youtu.be/-Dg15cV4QIM

Q-9:
Prove that root (1+sin theta/1-sin theta)=sec theta+tan theta. Exercise 8.4 question 5(vi).
youtu.be/m2z4_-iAfHk

Q-10:
Prove that cosec theta/(cosec theta-1) + cosec theta/(cosec theta+1)=2sec^2 theta.
youtu.be/a2QSf8CT0vY

Q-11:
Prove that cos theta/1-tan theta + sin theta/1-cot theta=sin theta+cos theta.
youtu.be/KmCZG3rDdjE

Q-12:
prove that tan theta/1-cot theta+cot theta/1-tan theta=1+sec theta cosec theta. Ex 8.4 Question 5 (iii):

Q-13:
Prove that (1+cota-coseca)(1+tana+seca)=2. Prove that (1+cotθ-cosecθ)(1+tanθ+secθ)=2
youtu.be/a0cUvDtJrfA

Q -14:
RD Sharma Example-7 | Prove that sin theta/(1-cos theta)+tan theta/(1+cos theta)=sec theta cosec theta+cot theta
youtu.be/udZRRe0esE8

Q -15:
RD Sharma Exercise 11.1 class 10 Example-11. Prove that cosa/1-tana+sin2a/sina-cosa=sina+cosa.
youtu.be/dPqDRjhV8UQ

Q-16(a):
If sec theta + tan theta=p, show that p^2-1/p^2+1=sin theta
youtu.be/1wiNjbz8kOA

Q-16(b):
If 3 sin theta + 5 cos theta=5, prove that 5 sin theta-3 cos theta=+-3
youtu.be/IDGoGt39i-Q

Q-17:
If acosθ bsinθ=c prove that asinθ+bcosθ= ±√a2+b2-c2
youtu.be/gHs2RSeUikQ

Q-18:
If sec theta=x+1/4x, show that sec theta+tan theta=2x or 1/2x
youtu.be/YwW2a16OahI

Q-19:
prove that 1/(cosec theta - cot theta)-1/sin theta=1/sin theta-1/(cosec theta + cot theta)
youtu.be/f1fVIqxfFKM

Q-20:
If cos theta+sin theta=√2 cos theta, then show that cosθ-sinθ = √ 2sinθ
youtu.be/sLt9eGuO10E

Q-21:
If tan theta=p/q, show that (p sin theta-q cos theta)/(p sin theta+q cos theta)=(p^2-q^2)/(p^2+q^2)
youtu.be/4i14Izdyuqw

Q-22:
Prove that sin theta / cot theta+cosec theta=2+sin theta/cot theta-cosec theta
youtu.be/BTfSFmPK9K0

Q-23:
If sin theta + sin^2 theta = 1, show that cos^2 theta + cos^4 theta = 1
youtu.be/RFw6GPJFSfc

Q-24:
Prove that sin^6x+cos^6x=1-3 sin^2x cos^2x
youtu.be/WTjT24tbIi0

Q-25:
prove that sec theta + tan theta -1/tan theta-sec theta+1= cos theta/1-sin theta
youtu.be/TWU_TcQ0uKw

Q-26:
If 7sin^2 theta+3cos^2 theta=4 show that tan theta= 1/√3
youtu.be/nW0q5kYLQHg

Q-27:
If x sin^3 theta + y cos^3 theta = sin theta cos theta , prove that x^2+y^2=1
youtu.be/TIaqW3KN7Dw

Q-28:
Prove that sin theta +cos theta /sin theta - cos theta +sin theta - cos theta /sin theta +cos theta=2 sec square theta /tan square theta -1
youtu.be/fCImXufL9Lg

Q-29:
Prove that tan2A-tan2B=sin2A-sin2B/cos2Acos2B=cos2B-cos2A/cos2Acos2B
youtu.be/YgaLP6Yt9uY

Q-30:
If a+b=90 then prove that root tanAtanB+tanAcotB/sinAsecB-sin2B/cos2A=tanA
youtu.be/9Ixpj6ztSRM

Q-31:
If tana=ntanb and sina=msinb prove that cos^2a=m^2-1/n^2-1
youtu.be/rcDfhSn5vwk

Q-32:
Prove that (1+sina-cosa/1+sina+cosa)^2=1-cosa/1+cosa
youtu.be/MFZnAlva98Y

Q-33:
If cosec theta - sin theta = l and sec theta - cos theta = m, then prove that l^2m^2(l^2+m^2+3)=1
youtu.be/VyP6DOuR7c4

Q-34:
If √3 cot^2θ - 4cotθ+ √3 =0, then find the value of cot^2θ + tan^2θ
youtu.be/qXCZ-DotlJ0

Q-35:
If tan theta+sin theta=m and tan theta-sin theta=n then prove that m^(2)-n^(2)=4sqrt(mn)
youtu.be/IysoLp2gy3k

Q-36:
If 1+sin^2 theta=3 sin theta cos theta, then prove that tan theta=1 or 1/2.
youtu.be/odlbSXJezJg

Q-37:
If tan theta+sec theta=l, then prove that sec theta=(l^2)+(1/2l)

Sudoku hard level - 5. How to solve hard level sudoku. Hard sudoku. Sudoku hard level tips. #puzzle

Avi Jain Classes 2020-09-02 | How to solve hard sudoku. Hard sudoku. Hard sudoku puzzle solved (Level-5)
#sudokuavijain #puzzle
This is an amazing video that will teach you how to solve a hard level sudoku puzzle. The various tips and techniques that are needed to solve the hard sudoku puzzle has also been explained in detail. We have started a series where we teach you how to solve an expert level and hard level sudoku puzzle and this video is the 5th one of that series. The other videos where we have solved hard level sudoku puzzles are as follows. I would recommend you all to solve all these puzzles and be an expert in solving the sudoku puzzles.
#hardsudoku #sudokuhard #puzzle #sudoku #sudokuavijain #avijainsudoku

The link to unique rectangles trick is as follows:
youtu.be/ohruEPfAA5Q

The other extremely hard sudoku solved are as follows:

The various other hard level and expert level sudoku puzzles that we have already solved are:

expert sudoku solved, level 1 - youtu.be/caAVJp36ZhA
expert sudoku solved, level 2 - youtu.be/AOA6icJzv2Y
expert sudoku solved, level 3 - youtu.be/9bTfTLmb22I
expert sudoku solved, level 4 - youtu.be/a640mmCOG7M
expert sudoku solved, level 5 - youtu.be/S5p8MBV6jVI
expert sudoku solved, level 6 - youtu.be/XsXthbw5YJo
expert sudoku solved, level 7 - youtu.be/p5VwwmDr4Hc
expert sudoku solved, level 8 - youtu.be/l6U9mqV0mdA

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Sudoku hard level. How to solve Hard Sudoku. Sudoku expert level - 4 #puzzle #sudoku

Avi Jain Classes 2020-08-27 | Hard Sudoku puzzle solved with the help of an amazing expert sudoku trick. Hard sudoku solved | Hard sudoku solved with the least famous but most important sudoku solving trick. This video dealing with how to solve a very hard sudoku will teach you a number of things about how to approach a puzzle, especially when it is hard.
#puzzle #sudoku #expertsudoku #hardsudoku #sudokuavijain #avijainsudoku

Unique rectangle trick:
youtu.be/ohruEPfAA5Q

The various other hard level and expert level sudoku puzzles that we have already solved are:

expert sudoku solved, level 1 - youtu.be/caAVJp36ZhA
expert sudoku solved, level 2 - youtu.be/AOA6icJzv2Y
expert sudoku solved, level 3 - youtu.be/9bTfTLmb22I
expert sudoku solved, level 4 - youtu.be/a640mmCOG7M
expert sudoku solved, level 5 - youtu.be/S5p8MBV6jVI
expert sudoku solved, level 6 - youtu.be/XsXthbw5YJo
expert sudoku solved, level 7 - youtu.be/p5VwwmDr4Hc
expert sudoku solved, level 8 - youtu.be/l6U9mqV0mdA

The video solves the following queries:
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Production Possibility Curve | PPC | Class 11 | Economics |

Avi Jain Classes 2020-08-20 | Production Possibility Curve. PPC. Economics class 11 chapter 1. This is the definitely the best explanation that you would find on this topic. Production possibility curve is a very important topic for class 11 economics chapter 1. This video will teach you in detail the concept of PPC and you will also get to know - (1) why is ppc concave shaped and (2) why is ppc downward sloping.

If x+y=3 and xy=2 find x3-y3. Chapter 2 class 9 maths | Polynomials | Polynomials class 9 |

Avi Jain Classes 2020-08-15 | If x+y=3 and xy=2 find x3-y3. Chapter 2 class 9 maths. Polynomials. Polynomials class 9. #polynomials #polynomialsclass9 #polynomialsclass9avijainclasses #avijainclasses #chapter2class9maths #mathspolynomialschapter2 #class9maths

Previous video:
If x+y=9 and xy=14, find the value of x-y.
youtu.be/DtA6wDq9Vrc

Next video:
If x+1/x=5 find the value of x^4+1/x^4
youtu.be/jtDP9tYeYuc

The other important questions which you must study from Chapter 2 class 9 are as follows:

(1) If x+y=12 and xy=32, find x^2+y^2.
youtu.be/oSNwEFfEeU0

(2) If a+b=8 and a^2+b^2=48, find a^3+b^3.
youtu.be/6nH9RycuSVg

(3) If x+y=12 and xy=27, find x^3+y^3.
youtu.be/onYlEqv8myI

(4) If x-y=4 and xy=12 find x3-y3.
youtu.be/aJsM4d4-cNI

(5) If x+1/x=6 find x2+1/x2. If x+1/x=3 then find the value of x^3+1/x^3.
youtu.be/zKAETkEUfEw

(6) If x^2+1/x^2=27 find the value of x+1/x.
youtu.be/dMPdd_gHVSc

(7) If x^2+1/x^2=66 find the value of x-1/x.
youtu.be/TMhtL2wTpos

(8) If x^2+1/x^2=7, find the value of x^3+1/x^3.
youtu.be/fcZvpGCwTS0

(9) If x^2+1/x^2=18 find x^3-1/x^3.
youtu.be/nhYx3VcnE8w

(10) If x+y=9 and xy=14, find the value of x-y.
youtu.be/DtA6wDq9Vrc

(11) If x-y=5 and xy=24 find the value of (x+y)
youtu.be/U9wn-kjh5Zk

(12) If x+y=3 and xy=2 find x3-y3
youtu.be/srTcaqr_De4

(13) If x+1/x=5 find the value of x^4+1/x^4
youtu.be/jtDP9tYeYuc

(14) If x+1/x=3 find x4-1/x4
youtu.be/x-W1dv4W-hQ

(15) If x2-3x+1=0 find x5+1/x5
youtu.be/fKgc_yHoYlo

(16) If x=5-2√6 find x2+1/x2
youtu.be/LxKCYDn3SUg

(17) If x=2+√3 find the value of x^3+1/x^3
youtu.be/-z2Riv7tOxA

(18) If x=3-2√2 then find the value of √x+1/√x
youtu.be/xmxw6TDnmaI

(19) If x=5+√24 find the value of √x+1/√x.
youtu.be/SDrsEnrGGYs

(20) factorise a^2+b^2-2(ab-ac+bc). factorise 4a^2-9b^2-(2a-3b). factorise a-b-a2+b2. factorise 108a^2-3(b-c)^2. factorise 25x^2-10x+1-36y^2
youtu.be/n4O1UVLjfAU

(21) Factorise x^8-y^8. Factorise x^4+y^4. Factorise x^4-y^4. Factorise x^8+y^8. Factorise x^2+y^2.
youtu.be/e5ByU8k-fcQ

(22) Factorise: x^2+1/x^2+2. Factorise x^2+1/x^2. Factorise x^2+1/x^2+1. polynomials class 9 chapter 2.
youtu.be/Rn9hKYFf_T8

(23) Factorise x^2+1/x^2+2-2x-2/x . Factorise x^3-1/x^3-2x+2/x
youtu.be/-OEDAVczNag

(24) Factorise 12(x^2+7x)^2-8(x^2+7x)(2x-1)-15(2x-1)^2. Factorise (x^2-3x)^2-8(x^2-3x)-20.
youtu.be/HgQzxOO97xY

(25) Simplify : (x^2+x-2)(x^2-x+2)
youtu.be/mcovtpr3BqY

(26) Factorise: (x+y)^3-(x-y)^3. Factorise : (x+y)^3+(x-y)^3
youtu.be/kvb5Guu6ffI

(27) Factorise : (2x-5y)^3-(2x+5y)^3. Factorise : (2x+3y)^3-(2x-3y)^3
youtu.be/xvKiqc9ZnfI

(28) Factorise: (x+2)^3-(x-2)^3
youtu.be/iEz5ePfkJMc

(29) Factorise (a+b)^3-8(a-b)^3
youtu.be/G5rmi8mTB4I

(30) If a+b+c=9 and ab+bc+ca=26 find the value of a^3+b^3+c^3-3abc
youtu.be/i7a_-1VtzF8

(31) If a+b+c=15 and a^2+b^2+c^2=83 find the value of a^3+b^3+c^3-3abc
youtu.be/10AvVP9hwcw

(32) Find the value of x^3+y^3+15xy-125 when x+y=5
youtu.be/S8E8G413D2o

(33) if a+b+c=6 find the value of (2-a)^3+(2-b)^3+(2-c)^3-3(2-a)(2-b)(2-c).
youtu.be/6nDV1YtvZlc

(34) Prove that (x+y)^3+(y+z)^3+(z+x)^3-3(x+y)(y+z)(z+x)=2(x^3+y^3+z^3-3xyz)
youtu.be/9B9XxHzxxWQ

(35) Without actual division prove that x^4-5x^3+8x^2-10x+12 is exactly divisible by x^2-5x+6
youtu.be/muHCCg_C-g8

(36) Let p and q be the remainders when the polynomials x^3+2x^2-5ax-7 and x^3+ax^2-12x+6 are divided by (x+1) and (x-2) respectively. If 2p+q=6, find the value of a.
youtu.be/MkpKmsnJQn0

(37) If both (x-2) and (x-1/2) are the factors of px^2+5x+r, then show that p=r.
youtu.be/PYF-9BuTJuM

(38) If the polynomials ax^3+4x^2+3x 4 and x^3 4x+a leave the same remainder when divided by (x-3), find a.
youtu.be/BWjCjVOsAh4

(39) Factorise x6+5x3+8.
youtu.be/VLzw-m_2wCk

(40) Simplify (a+b)^3-(a-b)^3-6b(a^2-b^2).
youtu.be/ceSfFXP1XQY

(41) Factorise (x2+1/x2)2-4(x+1/x)+6
youtu.be/xmNvrdMITfM

(42) If a+b+c=0, then prove that (b+c)^2/3bc + (c+a)^2/3ca + (a+b)^2/3ab = 1.
youtu.be/l9RY46ykQh4

(43) If ab+bc+ca=0 , find the value of (1/a^2 - bc) + (1/b^2 - ac) + (1/c^2 - ab).
youtu.be/PrtI9BzGVmM

(44) If x=1/2-√3 find the value of x3-2x2-7x+5
youtu.be/qlZr6QwNZ1k

(45) Prove that (a+b+c)^3-a^3-b^3-c^3=3(a+b)(b+c)(c+a)
youtu.be/AgXlujkLrWM

(46) How to factorise cyclic polynomial. Factorise a(b^2-c^2)+b(c^2-a^2)+c(a^2-b^2)
youtu.be/D3KoqbBnt6s

(47) if x=2+3√2 find the value of x+14/x
youtu.be/7FGspP29MJA

If x=2+3√2 find the value of x+14/x. Maths polynomials chapter 2 | Class 9 maths |

Avi Jain Classes 2020-08-14 | If x=2+3√2 find the value of x+14/x. Polynomials. Class 9 maths. Chapter 2 Maths. #polynomials #polynomialsclass9 #polynomialsclass9avijainclasses #avijainclasses #chapter2class9maths #mathspolynomialschapter2 #class9maths

Previous video:
How to factorise cyclic polynomial. Factorise a(b^2-c^2)+b(c^2-a^2)+c(a^2-b^2)
youtu.be/D3KoqbBnt6s

Next video:
If x= √p+2q +√p-2q / √p+2q - √p-2q then show that qx2-px+q=0.

The other important questions which you must study from Chapter 2 class 9 are as follows:

(1) If x+y=12 and xy=32, find x^2+y^2.
youtu.be/oSNwEFfEeU0

(2) If a+b=8 and a^2+b^2=48, find a^3+b^3.
youtu.be/6nH9RycuSVg

(3) If x+y=12 and xy=27, find x^3+y^3.
youtu.be/onYlEqv8myI

(4) If x-y=4 and xy=12 find x3-y3.
youtu.be/aJsM4d4-cNI

(5) If x+1/x=6 find x2+1/x2. If x+1/x=3 then find the value of x^3+1/x^3.
youtu.be/zKAETkEUfEw

(6) If x^2+1/x^2=27 find the value of x+1/x.
youtu.be/dMPdd_gHVSc

(7) If x^2+1/x^2=66 find the value of x-1/x.
youtu.be/TMhtL2wTpos

(8) If x^2+1/x^2=7, find the value of x^3+1/x^3.
youtu.be/fcZvpGCwTS0

(9) If x^2+1/x^2=18 find x^3-1/x^3.
youtu.be/nhYx3VcnE8w

(10) If x+y=9 and xy=14, find the value of x-y.
youtu.be/DtA6wDq9Vrc

(11) If x-y=5 and xy=24 find the value of (x+y)
youtu.be/U9wn-kjh5Zk

(12) If x+y=3 and xy=2 find x3-y3
youtu.be/srTcaqr_De4

(13) If x+1/x=5 find the value of x^4+1/x^4
youtu.be/jtDP9tYeYuc

(14) If x+1/x=3 find x4-1/x4
youtu.be/x-W1dv4W-hQ

(15) If x2-3x+1=0 find x5+1/x5
youtu.be/fKgc_yHoYlo

(16) If x=5-2√6 find x2+1/x2
youtu.be/LxKCYDn3SUg

(17) If x=2+√3 find the value of x^3+1/x^3
youtu.be/-z2Riv7tOxA

(18) If x=3-2√2 then find the value of √x+1/√x
youtu.be/xmxw6TDnmaI

(19) If x=5+√24 find the value of √x+1/√x.
youtu.be/SDrsEnrGGYs

(20) factorise a^2+b^2-2(ab-ac+bc). factorise 4a^2-9b^2-(2a-3b). factorise a-b-a2+b2. factorise 108a^2-3(b-c)^2. factorise 25x^2-10x+1-36y^2
youtu.be/n4O1UVLjfAU

(21) Factorise x^8-y^8. Factorise x^4+y^4. Factorise x^4-y^4. Factorise x^8+y^8. Factorise x^2+y^2.
youtu.be/e5ByU8k-fcQ

(22) Factorise: x^2+1/x^2+2. Factorise x^2+1/x^2. Factorise x^2+1/x^2+1. polynomials class 9 chapter 2.
youtu.be/Rn9hKYFf_T8

(23) Factorise x^2+1/x^2+2-2x-2/x . Factorise x^3-1/x^3-2x+2/x
youtu.be/-OEDAVczNag

(24) Factorise 12(x^2+7x)^2-8(x^2+7x)(2x-1)-15(2x-1)^2. Factorise (x^2-3x)^2-8(x^2-3x)-20.
youtu.be/HgQzxOO97xY

(25) Simplify : (x^2+x-2)(x^2-x+2)
youtu.be/mcovtpr3BqY

(26) Factorise: (x+y)^3-(x-y)^3. Factorise : (x+y)^3+(x-y)^3
youtu.be/kvb5Guu6ffI

(27) Factorise : (2x-5y)^3-(2x+5y)^3. Factorise : (2x+3y)^3-(2x-3y)^3
youtu.be/xvKiqc9ZnfI

(28) Factorise: (x+2)^3-(x-2)^3
youtu.be/iEz5ePfkJMc

(29) Factorise (a+b)^3-8(a-b)^3
youtu.be/G5rmi8mTB4I

(30) If a+b+c=9 and ab+bc+ca=26 find the value of a^3+b^3+c^3-3abc
youtu.be/i7a_-1VtzF8

(31) If a+b+c=15 and a^2+b^2+c^2=83 find the value of a^3+b^3+c^3-3abc
youtu.be/10AvVP9hwcw

(32) Find the value of x^3+y^3+15xy-125 when x+y=5
youtu.be/S8E8G413D2o

(33) if a+b+c=6 find the value of (2-a)^3+(2-b)^3+(2-c)^3-3(2-a)(2-b)(2-c).
youtu.be/6nDV1YtvZlc

(34) Prove that (x+y)^3+(y+z)^3+(z+x)^3-3(x+y)(y+z)(z+x)=2(x^3+y^3+z^3-3xyz)
youtu.be/9B9XxHzxxWQ

(35) Without actual division prove that x^4-5x^3+8x^2-10x+12 is exactly divisible by x^2-5x+6
youtu.be/muHCCg_C-g8

(36) Let p and q be the remainders when the polynomials x^3+2x^2-5ax-7 and x^3+ax^2-12x+6 are divided by (x+1) and (x-2) respectively. If 2p+q=6, find the value of a.
youtu.be/MkpKmsnJQn0

(37) If both (x-2) and (x-1/2) are the factors of px^2+5x+r, then show that p=r.
youtu.be/PYF-9BuTJuM

(38) If the polynomials ax^3+4x^2+3x 4 and x^3 4x+a leave the same remainder when divided by (x-3), find a.
youtu.be/BWjCjVOsAh4

(39) Factorise x6+5x3+8.
youtu.be/VLzw-m_2wCk

(40) Simplify (a+b)^3-(a-b)^3-6b(a^2-b^2).
youtu.be/ceSfFXP1XQY

(41) Factorise (x2+1/x2)2-4(x+1/x)+6
youtu.be/xmNvrdMITfM

(42) If a+b+c=0, then prove that (b+c)^2/3bc + (c+a)^2/3ca + (a+b)^2/3ab = 1.
youtu.be/l9RY46ykQh4

(43) If ab+bc+ca=0 , find the value of (1/a^2 - bc) + (1/b^2 - ac) + (1/c^2 - ab).
youtu.be/PrtI9BzGVmM

(44) If x=1/2-√3 find the value of x3-2x2-7x+5
youtu.be/qlZr6QwNZ1k

(45) Prove that (a+b+c)^3-a^3-b^3-c^3=3(a+b)(b+c)(c+a)
youtu.be/AgXlujkLrWM

(46) How to factorise cyclic polynomial. Factorise a(b^2-c^2)+b(c^2-a^2)+c(a^2-b^2)
youtu.be/D3KoqbBnt6s

(47) if x=2+3√2 find the value of x+14/x
youtu.be/7FGspP29MJA

If x-y=4 and xy=12 find x3-y3. Chapter 2 class 9 maths | Polynomials | Polynomials class 9 |

Avi Jain Classes 2020-08-11 | If x-y=4 and xy=12 find x3-y3. If x-y=4 and xy=12 find x^3-y^3. Chapter 2 class 9 maths | Polynomials | Polynomials class 9 |
#polynomials #polynomialsclass9 #polynomialsclass9avijainclasses #avijainclasses #chapter2class9maths #mathspolynomialschapter2 #class9maths

Previous video:
If x+y=12 and xy=27, find x^3+y^3.
youtu.be/onYlEqv8myI

Next video:
If x+1/x=6 find x2+1/x2. If x+1/x=3 then find the value of x^3+1/x^3.
youtu.be/zKAETkEUfEw

The other important questions which you must study from Chapter 2 class 9 are as follows:

(1) If x+y=12 and xy=32, find x^2+y^2.
youtu.be/oSNwEFfEeU0

(2) If a+b=8 and a^2+b^2=48, find a^3+b^3.
youtu.be/6nH9RycuSVg

(3) If x+y=12 and xy=27, find x^3+y^3.
youtu.be/onYlEqv8myI

(4) If x-y=4 and xy=12 find x3-y3.
youtu.be/aJsM4d4-cNI

(5) If x+1/x=6 find x2+1/x2. If x+1/x=3 then find the value of x^3+1/x^3.
youtu.be/zKAETkEUfEw

(6) If x^2+1/x^2=27 find the value of x+1/x.
youtu.be/dMPdd_gHVSc

(7) If x^2+1/x^2=66 find the value of x-1/x.
youtu.be/TMhtL2wTpos

(8) If x^2+1/x^2=7, find the value of x^3+1/x^3.
youtu.be/fcZvpGCwTS0

(9) If x^2+1/x^2=18 find x^3-1/x^3.
youtu.be/nhYx3VcnE8w

(10) If x+y=9 and xy=14, find the value of x-y.
youtu.be/DtA6wDq9Vrc

(11) If x-y=5 and xy=24 find the value of (x+y)
youtu.be/U9wn-kjh5Zk

(12) If x+y=3 and xy=2 find x3-y3
youtu.be/srTcaqr_De4

(13) If x+1/x=5 find the value of x^4+1/x^4
youtu.be/jtDP9tYeYuc

(14) If x+1/x=3 find x4-1/x4
youtu.be/x-W1dv4W-hQ

(15) If x2-3x+1=0 find x5+1/x5
youtu.be/fKgc_yHoYlo

(16) If x=5-2√6 find x2+1/x2
youtu.be/LxKCYDn3SUg

(17) If x=2+√3 find the value of x^3+1/x^3
youtu.be/-z2Riv7tOxA

(18) If x=3-2√2 then find the value of √x+1/√x
youtu.be/xmxw6TDnmaI

(19) If x=5+√24 find the value of √x+1/√x.
youtu.be/SDrsEnrGGYs

(20) factorise a^2+b^2-2(ab-ac+bc). factorise 4a^2-9b^2-(2a-3b). factorise a-b-a2+b2. factorise 108a^2-3(b-c)^2. factorise 25x^2-10x+1-36y^2
youtu.be/n4O1UVLjfAU

(21) Factorise x^8-y^8. Factorise x^4+y^4. Factorise x^4-y^4. Factorise x^8+y^8. Factorise x^2+y^2.
youtu.be/e5ByU8k-fcQ

(22) Factorise: x^2+1/x^2+2. Factorise x^2+1/x^2. Factorise x^2+1/x^2+1. polynomials class 9 chapter 2.
youtu.be/Rn9hKYFf_T8

(23) Factorise x^2+1/x^2+2-2x-2/x . Factorise x^3-1/x^3-2x+2/x
youtu.be/-OEDAVczNag

(24) Factorise 12(x^2+7x)^2-8(x^2+7x)(2x-1)-15(2x-1)^2. Factorise (x^2-3x)^2-8(x^2-3x)-20.
youtu.be/HgQzxOO97xY

(25) Simplify : (x^2+x-2)(x^2-x+2)
youtu.be/mcovtpr3BqY

(26) Factorise: (x+y)^3-(x-y)^3. Factorise : (x+y)^3+(x-y)^3
youtu.be/kvb5Guu6ffI

(27) Factorise : (2x-5y)^3-(2x+5y)^3. Factorise : (2x+3y)^3-(2x-3y)^3
youtu.be/xvKiqc9ZnfI

(28) Factorise: (x+2)^3-(x-2)^3
youtu.be/iEz5ePfkJMc

(29) Factorise (a+b)^3-8(a-b)^3
youtu.be/G5rmi8mTB4I

(30) If a+b+c=9 and ab+bc+ca=26 find the value of a^3+b^3+c^3-3abc
youtu.be/i7a_-1VtzF8

(31) If a+b+c=15 and a^2+b^2+c^2=83 find the value of a^3+b^3+c^3-3abc
youtu.be/10AvVP9hwcw

(32) Find the value of x^3+y^3+15xy-125 when x+y=5
youtu.be/S8E8G413D2o

(33) if a+b+c=6 find the value of (2-a)^3+(2-b)^3+(2-c)^3-3(2-a)(2-b)(2-c).
youtu.be/6nDV1YtvZlc

(34) Prove that (x+y)^3+(y+z)^3+(z+x)^3-3(x+y)(y+z)(z+x)=2(x^3+y^3+z^3-3xyz)
youtu.be/9B9XxHzxxWQ

(35) Without actual division prove that x^4-5x^3+8x^2-10x+12 is exactly divisible by x^2-5x+6
youtu.be/muHCCg_C-g8

(36) Let p and q be the remainders when the polynomials x^3+2x^2-5ax-7 and x^3+ax^2-12x+6 are divided by (x+1) and (x-2) respectively. If 2p+q=6, find the value of a.
youtu.be/MkpKmsnJQn0

(37) If both (x-2) and (x-1/2) are the factors of px^2+5x+r, then show that p=r.
youtu.be/PYF-9BuTJuM

(38) If the polynomials ax^3+4x^2+3x 4 and x^3 4x+a leave the same remainder when divided by (x-3), find a.
youtu.be/BWjCjVOsAh4

(39) Factorise x6+5x3+8.
youtu.be/VLzw-m_2wCk

(40) Simplify (a+b)^3-(a-b)^3-6b(a^2-b^2).
youtu.be/ceSfFXP1XQY

(41) Factorise (x2+1/x2)2-4(x+1/x)+6
youtu.be/xmNvrdMITfM

(42) If a+b+c=0, then prove that (b+c)^2/3bc + (c+a)^2/3ca + (a+b)^2/3ab = 1.
youtu.be/l9RY46ykQh4

(43) If ab+bc+ca=0 , find the value of (1/a^2 - bc) + (1/b^2 - ac) + (1/c^2 - ab).
youtu.be/PrtI9BzGVmM

(44) If x=1/2-√3 find the value of x3-2x2-7x+5
youtu.be/qlZr6QwNZ1k

(45) Prove that (a+b+c)^3-a^3-b^3-c^3=3(a+b)(b+c)(c+a)
youtu.be/AgXlujkLrWM

(46) How to factorise cyclic polynomial. Factorise a(b^2-c^2)+b(c^2-a^2)+c(a^2-b^2)
youtu.be/D3KoqbBnt6s

(47) if x=2+3√2 find the value of x+14/x
youtu.be/7FGspP29MJA

If x2-3x+1=0 find x5+1/x5. Chapter 2 class 9 maths | Polynomials | Polynomials class 9 |

Avi Jain Classes 2020-08-10 | If x2-3x+1=0 find x5+1/x5. Chapter 2 class 9 maths | Polynomials | Polynomials class 9 |. This video will also be helpful if you are looking to find x5+1/x5 when x+1/x=3 is given.
#polynomials #polynomialsclass9 #polynomialsclass9avijainclasses #avijainclasses #chapter2class9maths #mathspolynomialschapter2 #class9maths

Previous video:
If x+1/x=5 find the value of x^4+1/x^4
youtu.be/jtDP9tYeYuc

Next video:
If x=5-2√6 find x2+1/x2
youtu.be/LxKCYDn3SUg

The other important questions which you must study from Chapter 2 class 9 are as follows:

(1) If x+y=12 and xy=32, find x^2+y^2.
youtu.be/oSNwEFfEeU0

(2) If a+b=8 and a^2+b^2=48, find a^3+b^3.
youtu.be/6nH9RycuSVg

(3) If x+y=12 and xy=27, find x^3+y^3.
youtu.be/onYlEqv8myI

(4) If x-y=4 and xy=12 find x3-y3.
youtu.be/aJsM4d4-cNI

(5) If x+1/x=6 find x2+1/x2. If x+1/x=3 then find the value of x^3+1/x^3.
youtu.be/zKAETkEUfEw

(6) If x^2+1/x^2=27 find the value of x+1/x.
youtu.be/dMPdd_gHVSc

(7) If x^2+1/x^2=66 find the value of x-1/x.
youtu.be/TMhtL2wTpos

(8) If x^2+1/x^2=7, find the value of x^3+1/x^3.
youtu.be/fcZvpGCwTS0

(9) If x^2+1/x^2=18 find x^3-1/x^3.
youtu.be/nhYx3VcnE8w

(10) If x+y=9 and xy=14, find the value of x-y.
youtu.be/DtA6wDq9Vrc

(11) If x-y=5 and xy=24 find the value of (x+y)
youtu.be/U9wn-kjh5Zk

(12) If x+y=3 and xy=2 find x3-y3
youtu.be/srTcaqr_De4

(13) If x+1/x=5 find the value of x^4+1/x^4
youtu.be/jtDP9tYeYuc

(14) If x+1/x=3 find x4-1/x4
youtu.be/x-W1dv4W-hQ

(15) If x2-3x+1=0 find x5+1/x5
youtu.be/fKgc_yHoYlo

(16) If x=5-2√6 find x2+1/x2
youtu.be/LxKCYDn3SUg

(17) If x=2+√3 find the value of x^3+1/x^3
youtu.be/-z2Riv7tOxA

(18) If x=3-2√2 then find the value of √x+1/√x
youtu.be/xmxw6TDnmaI

(19) If x=5+√24 find the value of √x+1/√x.
youtu.be/SDrsEnrGGYs

(20) factorise a^2+b^2-2(ab-ac+bc). factorise 4a^2-9b^2-(2a-3b). factorise a-b-a2+b2. factorise 108a^2-3(b-c)^2. factorise 25x^2-10x+1-36y^2
youtu.be/n4O1UVLjfAU

(21) Factorise x^8-y^8. Factorise x^4+y^4. Factorise x^4-y^4. Factorise x^8+y^8. Factorise x^2+y^2.
youtu.be/e5ByU8k-fcQ

(22) Factorise: x^2+1/x^2+2. Factorise x^2+1/x^2. Factorise x^2+1/x^2+1. polynomials class 9 chapter 2.
youtu.be/Rn9hKYFf_T8

(23) Factorise x^2+1/x^2+2-2x-2/x . Factorise x^3-1/x^3-2x+2/x
youtu.be/-OEDAVczNag

(24) Factorise 12(x^2+7x)^2-8(x^2+7x)(2x-1)-15(2x-1)^2. Factorise (x^2-3x)^2-8(x^2-3x)-20.
youtu.be/HgQzxOO97xY

(25) Simplify : (x^2+x-2)(x^2-x+2)
youtu.be/mcovtpr3BqY

(26) Factorise: (x+y)^3-(x-y)^3. Factorise : (x+y)^3+(x-y)^3
youtu.be/kvb5Guu6ffI

(27) Factorise : (2x-5y)^3-(2x+5y)^3. Factorise : (2x+3y)^3-(2x-3y)^3
youtu.be/xvKiqc9ZnfI

(28) Factorise: (x+2)^3-(x-2)^3
youtu.be/iEz5ePfkJMc

(29) Factorise (a+b)^3-8(a-b)^3
youtu.be/G5rmi8mTB4I

(30) If a+b+c=9 and ab+bc+ca=26 find the value of a^3+b^3+c^3-3abc
youtu.be/i7a_-1VtzF8

(31) If a+b+c=15 and a^2+b^2+c^2=83 find the value of a^3+b^3+c^3-3abc
youtu.be/10AvVP9hwcw

(32) Find the value of x^3+y^3+15xy-125 when x+y=5
youtu.be/S8E8G413D2o

(33) if a+b+c=6 find the value of (2-a)^3+(2-b)^3+(2-c)^3-3(2-a)(2-b)(2-c).
youtu.be/6nDV1YtvZlc

(34) Prove that (x+y)^3+(y+z)^3+(z+x)^3-3(x+y)(y+z)(z+x)=2(x^3+y^3+z^3-3xyz)
youtu.be/9B9XxHzxxWQ

(35) Without actual division prove that x^4-5x^3+8x^2-10x+12 is exactly divisible by x^2-5x+6
youtu.be/muHCCg_C-g8

(36) Let p and q be the remainders when the polynomials x^3+2x^2-5ax-7 and x^3+ax^2-12x+6 are divided by (x+1) and (x-2) respectively. If 2p+q=6, find the value of a.
youtu.be/MkpKmsnJQn0

(37) If both (x-2) and (x-1/2) are the factors of px^2+5x+r, then show that p=r.
youtu.be/PYF-9BuTJuM

(38) If the polynomials ax^3+4x^2+3x 4 and x^3 4x+a leave the same remainder when divided by (x-3), find a.
youtu.be/BWjCjVOsAh4

(39) Factorise x6+5x3+8.
youtu.be/VLzw-m_2wCk

(40) Simplify (a+b)^3-(a-b)^3-6b(a^2-b^2).
youtu.be/ceSfFXP1XQY

(41) Factorise (x2+1/x2)2-4(x+1/x)+6
youtu.be/xmNvrdMITfM

(42) If a+b+c=0, then prove that (b+c)^2/3bc + (c+a)^2/3ca + (a+b)^2/3ab = 1.
youtu.be/l9RY46ykQh4

(43) If ab+bc+ca=0 , find the value of (1/a^2 - bc) + (1/b^2 - ac) + (1/c^2 - ab).
youtu.be/PrtI9BzGVmM

(44) If x=1/2-√3 find the value of x3-2x2-7x+5
youtu.be/qlZr6QwNZ1k

(45) Prove that (a+b+c)^3-a^3-b^3-c^3=3(a+b)(b+c)(c+a)
youtu.be/AgXlujkLrWM

(46) How to factorise cyclic polynomial. Factorise a(b^2-c^2)+b(c^2-a^2)+c(a^2-b^2)
youtu.be/D3KoqbBnt6s

(47) if x=2+3√2 find the value of x+14/x
youtu.be/7FGspP29MJA

Factorise | Factorise (x2+1/x2)2-4(x+1/x)+6 | Mathematics Class 9 |

Sudoku tricks - Unique rectangle. Tricks to solve hard and expert sudoku puzzles. #puzzle #sudoku

Avi Jain Classes 2020-08-09 | sudoku tricks. sudoku tricks - unique rectangles. Tricks to solve hard and expert sudoku puzzles.
#sudokuavijain #puzzle#sudoku #sudokutricks #expertsudoku #expertsudokutrick #sudokutricksbyavisir
Unique Rectangles-Expert Sudoku Trick | Best trick for hard sudoku puzzles | Trick for hard sudoku. This unique rectangles sudoku trick is an absolutely unbelievable trick that will help you to solve a very hard sudoku puzzle with an ease. This expert sudoku trick is not only easy to understand but also easy to locate in any sudoku puzzle. Some of the puzzles that might look very hard can be solved simply with this expert sudoku trick. The other expert sudoku tricks that we have already learnt are as follows:

x wing sudoku trick: youtu.be/ydkALO2Tkxk
finned x wing sudoku trick : youtu.be/JaKR8lrJ2_0
skyscraper sudoku trick : youtu.be/rUJ3qujvsSE
swordfish sudoku trick : youtu.be/y9ekwlcKgoU
xy wing sudoku trick : youtu.be/teWgj12r2Hg
xyz wing sudoku trick : youtu.be/a9rFqQ9zwW4
unique rectangles sudoku trick : youtu.be/ohruEPfAA5Q
two sector disjoint sets sudoku trick : youtu.be/bbQ05fl45D8

The video solves the following queries:
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sudoku techniques

If x+1/x=3 find x4-1/x4. Polynomials class 9 important questions. Chapter 2 maths class 9.

Avi Jain Classes 2020-08-07 | If x+1/x=3 find x4-1/x4. Chapter 2 maths class 9. Polynomials | Mathematics | If x+1/x=3 find x^4-1/x^4. Chapter 2 maths class 9 | Polynomials Class 9. #polynomials #polynomialsclass9 #polynomialsclass9avijainclasses #avijainclasses #polynomialsclass9byavisir #chapter2class9maths

The other important questions which you must study from Chapter 2 class 9 are as follows:

(1) If x+y=12 and xy=32, find x^2+y^2.
youtu.be/oSNwEFfEeU0

(2) If a+b=8 and a^2+b^2=48, find a^3+b^3.
youtu.be/6nH9RycuSVg

(3) If x+y=12 and xy=27, find x^3+y^3.
youtu.be/onYlEqv8myI

(4) If x-y=4 and xy=12 find x3-y3.
youtu.be/aJsM4d4-cNI

(5) If x+1/x=6 find x2+1/x2. If x+1/x=3 then find the value of x^3+1/x^3.
youtu.be/zKAETkEUfEw

(6) If x^2+1/x^2=27 find the value of x+1/x.
youtu.be/dMPdd_gHVSc

(7) If x^2+1/x^2=66 find the value of x-1/x.
youtu.be/TMhtL2wTpos

(8) If x^2+1/x^2=7, find the value of x^3+1/x^3.
youtu.be/fcZvpGCwTS0

(9) If x^2+1/x^2=18 find x^3-1/x^3.
youtu.be/nhYx3VcnE8w

(10) If x+y=9 and xy=14, find the value of x-y.
youtu.be/DtA6wDq9Vrc

(11) If x-y=5 and xy=24 find the value of (x+y)
youtu.be/U9wn-kjh5Zk

(12) If x+y=3 and xy=2 find x3-y3
youtu.be/srTcaqr_De4

(13) If x+1/x=5 find the value of x^4+1/x^4
youtu.be/jtDP9tYeYuc

(14) If x+1/x=3 find x4-1/x4
youtu.be/x-W1dv4W-hQ

(15) If x2-3x+1=0 find x5+1/x5
youtu.be/fKgc_yHoYlo

(16) If x=5-2√6 find x2+1/x2
youtu.be/LxKCYDn3SUg

(17) If x=2+√3 find the value of x^3+1/x^3
youtu.be/-z2Riv7tOxA

(18) If x=3-2√2 then find the value of √x+1/√x
youtu.be/xmxw6TDnmaI

(19) If x=5+√24 find the value of √x+1/√x.
youtu.be/SDrsEnrGGYs

(20) factorise a^2+b^2-2(ab-ac+bc). factorise 4a^2-9b^2-(2a-3b). factorise a-b-a2+b2. factorise 108a^2-3(b-c)^2. factorise 25x^2-10x+1-36y^2
youtu.be/n4O1UVLjfAU

(21) Factorise x^8-y^8. Factorise x^4+y^4. Factorise x^4-y^4. Factorise x^8+y^8. Factorise x^2+y^2.
youtu.be/e5ByU8k-fcQ

(22) Factorise: x^2+1/x^2+2. Factorise x^2+1/x^2. Factorise x^2+1/x^2+1. polynomials class 9 chapter 2.
youtu.be/Rn9hKYFf_T8

(23) Factorise x^2+1/x^2+2-2x-2/x . Factorise x^3-1/x^3-2x+2/x
youtu.be/-OEDAVczNag

(24) Factorise 12(x^2+7x)^2-8(x^2+7x)(2x-1)-15(2x-1)^2. Factorise (x^2-3x)^2-8(x^2-3x)-20.
youtu.be/HgQzxOO97xY

(25) Simplify : (x^2+x-2)(x^2-x+2)
youtu.be/mcovtpr3BqY

(26) Factorise: (x+y)^3-(x-y)^3. Factorise : (x+y)^3+(x-y)^3
youtu.be/kvb5Guu6ffI

(27) Factorise : (2x-5y)^3-(2x+5y)^3. Factorise : (2x+3y)^3-(2x-3y)^3
youtu.be/xvKiqc9ZnfI

(28) Factorise: (x+2)^3-(x-2)^3
youtu.be/iEz5ePfkJMc

(29) Factorise (a+b)^3-8(a-b)^3
youtu.be/G5rmi8mTB4I

(30) If a+b+c=9 and ab+bc+ca=26 find the value of a^3+b^3+c^3-3abc
youtu.be/i7a_-1VtzF8

(31) If a+b+c=15 and a^2+b^2+c^2=83 find the value of a^3+b^3+c^3-3abc
youtu.be/10AvVP9hwcw

(32) Find the value of x^3+y^3+15xy-125 when x+y=5
youtu.be/S8E8G413D2o

(33) if a+b+c=6 find the value of (2-a)^3+(2-b)^3+(2-c)^3-3(2-a)(2-b)(2-c).
youtu.be/6nDV1YtvZlc

(34) Prove that (x+y)^3+(y+z)^3+(z+x)^3-3(x+y)(y+z)(z+x)=2(x^3+y^3+z^3-3xyz)
youtu.be/9B9XxHzxxWQ

(35) Without actual division prove that x^4-5x^3+8x^2-10x+12 is exactly divisible by x^2-5x+6
youtu.be/muHCCg_C-g8

(36) Let p and q be the remainders when the polynomials x^3+2x^2-5ax-7 and x^3+ax^2-12x+6 are divided by (x+1) and (x-2) respectively. If 2p+q=6, find the value of a.
youtu.be/MkpKmsnJQn0

(37) If both (x-2) and (x-1/2) are the factors of px^2+5x+r, then show that p=r.
youtu.be/PYF-9BuTJuM

(38) If the polynomials ax^3+4x^2+3x 4 and x^3 4x+a leave the same remainder when divided by (x-3), find a.
youtu.be/BWjCjVOsAh4

(39) Factorise x6+5x3+8.
youtu.be/VLzw-m_2wCk

(40) Simplify (a+b)^3-(a-b)^3-6b(a^2-b^2).
youtu.be/ceSfFXP1XQY

(41) Factorise (x2+1/x2)2-4(x+1/x)+6
youtu.be/xmNvrdMITfM

(42) If a+b+c=0, then prove that (b+c)^2/3bc + (c+a)^2/3ca + (a+b)^2/3ab = 1.
youtu.be/l9RY46ykQh4

(43) If ab+bc+ca=0 , find the value of (1/a^2 - bc) + (1/b^2 - ac) + (1/c^2 - ab).
youtu.be/PrtI9BzGVmM

(44) If x=1/2-√3 find the value of x3-2x2-7x+5
youtu.be/qlZr6QwNZ1k

(45) Prove that (a+b+c)^3-a^3-b^3-c^3=3(a+b)(b+c)(c+a)
youtu.be/AgXlujkLrWM

(46) How to factorise cyclic polynomial. Factorise a(b^2-c^2)+b(c^2-a^2)+c(a^2-b^2)
youtu.be/D3KoqbBnt6s

(47) if x=2+3√2 find the value of x+14/x
youtu.be/7FGspP29MJA

Mathematics | If x+1/x=5 find the value of x^4+1/x^4. Class 9 maths.

Avi Jain Classes 2020-08-07 | Mathematics | If x+1/x=5 find the value of x^4+1/x^4. Class 9 maths. Mathematics | If x+1/x=5 find the value of x4+1/x4. Class 9 maths. Polynomials class 9. Chapter 2 class 9. #polynomials #polynomialsclass9 #polynomialsbyavisir #polynomialsclass9avijainclasses #avijainclasses

The other important questions which you must study from Chapter 2 class 9 are as follows:

(1) If x+y=12 and xy=32, find x^2+y^2.
youtu.be/oSNwEFfEeU0

(2) If a+b=8 and a^2+b^2=48, find a^3+b^3.
youtu.be/6nH9RycuSVg

(3) If x+y=12 and xy=27, find x^3+y^3.
youtu.be/onYlEqv8myI

(4) If x-y=4 and xy=12 find x3-y3.
youtu.be/aJsM4d4-cNI

(5) If x+1/x=6 find x2+1/x2. If x+1/x=3 then find the value of x^3+1/x^3.
youtu.be/zKAETkEUfEw

(6) If x^2+1/x^2=27 find the value of x+1/x.
youtu.be/dMPdd_gHVSc

(7) If x^2+1/x^2=66 find the value of x-1/x.
youtu.be/TMhtL2wTpos

(8) If x^2+1/x^2=7, find the value of x^3+1/x^3.
youtu.be/fcZvpGCwTS0

(9) If x^2+1/x^2=18 find x^3-1/x^3.
youtu.be/nhYx3VcnE8w

(10) If x+y=9 and xy=14, find the value of x-y.
youtu.be/DtA6wDq9Vrc

(11) If x-y=5 and xy=24 find the value of (x+y)
youtu.be/U9wn-kjh5Zk

(12) If x+y=3 and xy=2 find x3-y3
youtu.be/srTcaqr_De4

(13) If x+1/x=5 find the value of x^4+1/x^4
youtu.be/jtDP9tYeYuc

(14) If x+1/x=3 find x4-1/x4
youtu.be/x-W1dv4W-hQ

(15) If x2-3x+1=0 find x5+1/x5
youtu.be/fKgc_yHoYlo

(16) If x=5-2√6 find x2+1/x2
youtu.be/LxKCYDn3SUg

(17) If x=2+√3 find the value of x^3+1/x^3
youtu.be/-z2Riv7tOxA

(18) If x=3-2√2 then find the value of √x+1/√x
youtu.be/xmxw6TDnmaI

(19) If x=5+√24 find the value of √x+1/√x.
youtu.be/SDrsEnrGGYs

(20) factorise a^2+b^2-2(ab-ac+bc). factorise 4a^2-9b^2-(2a-3b). factorise a-b-a2+b2. factorise 108a^2-3(b-c)^2. factorise 25x^2-10x+1-36y^2
youtu.be/n4O1UVLjfAU

(21) Factorise x^8-y^8. Factorise x^4+y^4. Factorise x^4-y^4. Factorise x^8+y^8. Factorise x^2+y^2.
youtu.be/e5ByU8k-fcQ

(22) Factorise: x^2+1/x^2+2. Factorise x^2+1/x^2. Factorise x^2+1/x^2+1. polynomials class 9 chapter 2.
youtu.be/Rn9hKYFf_T8

(23) Factorise x^2+1/x^2+2-2x-2/x . Factorise x^3-1/x^3-2x+2/x
youtu.be/-OEDAVczNag

(24) Factorise 12(x^2+7x)^2-8(x^2+7x)(2x-1)-15(2x-1)^2. Factorise (x^2-3x)^2-8(x^2-3x)-20.
youtu.be/HgQzxOO97xY

(25) Simplify : (x^2+x-2)(x^2-x+2)
youtu.be/mcovtpr3BqY

(26) Factorise: (x+y)^3-(x-y)^3. Factorise : (x+y)^3+(x-y)^3
youtu.be/kvb5Guu6ffI

(27) Factorise : (2x-5y)^3-(2x+5y)^3. Factorise : (2x+3y)^3-(2x-3y)^3
youtu.be/xvKiqc9ZnfI

(28) Factorise: (x+2)^3-(x-2)^3
youtu.be/iEz5ePfkJMc

(29) Factorise (a+b)^3-8(a-b)^3
youtu.be/G5rmi8mTB4I

(30) If a+b+c=9 and ab+bc+ca=26 find the value of a^3+b^3+c^3-3abc
youtu.be/i7a_-1VtzF8

(31) If a+b+c=15 and a^2+b^2+c^2=83 find the value of a^3+b^3+c^3-3abc
youtu.be/10AvVP9hwcw

(32) Find the value of x^3+y^3+15xy-125 when x+y=5
youtu.be/S8E8G413D2o

(33) if a+b+c=6 find the value of (2-a)^3+(2-b)^3+(2-c)^3-3(2-a)(2-b)(2-c).
youtu.be/6nDV1YtvZlc

(34) Prove that (x+y)^3+(y+z)^3+(z+x)^3-3(x+y)(y+z)(z+x)=2(x^3+y^3+z^3-3xyz)
youtu.be/9B9XxHzxxWQ

(35) Without actual division prove that x^4-5x^3+8x^2-10x+12 is exactly divisible by x^2-5x+6
youtu.be/muHCCg_C-g8

(36) Let p and q be the remainders when the polynomials x^3+2x^2-5ax-7 and x^3+ax^2-12x+6 are divided by (x+1) and (x-2) respectively. If 2p+q=6, find the value of a.
youtu.be/MkpKmsnJQn0

(37) If both (x-2) and (x-1/2) are the factors of px^2+5x+r, then show that p=r.
youtu.be/PYF-9BuTJuM

(38) If the polynomials ax^3+4x^2+3x 4 and x^3 4x+a leave the same remainder when divided by (x-3), find a.
youtu.be/BWjCjVOsAh4

(39) Factorise x6+5x3+8.
youtu.be/VLzw-m_2wCk

(40) Simplify (a+b)^3-(a-b)^3-6b(a^2-b^2).
youtu.be/ceSfFXP1XQY

(41) Factorise (x2+1/x2)2-4(x+1/x)+6
youtu.be/xmNvrdMITfM

(42) If a+b+c=0, then prove that (b+c)^2/3bc + (c+a)^2/3ca + (a+b)^2/3ab = 1.
youtu.be/l9RY46ykQh4

(43) If ab+bc+ca=0 , find the value of (1/a^2 - bc) + (1/b^2 - ac) + (1/c^2 - ab).
youtu.be/PrtI9BzGVmM

(44) If x=1/2-√3 find the value of x3-2x2-7x+5
youtu.be/qlZr6QwNZ1k

(45) Prove that (a+b+c)^3-a^3-b^3-c^3=3(a+b)(b+c)(c+a)
youtu.be/AgXlujkLrWM

(46) How to factorise cyclic polynomial. Factorise a(b^2-c^2)+b(c^2-a^2)+c(a^2-b^2)
youtu.be/D3KoqbBnt6s

(47) if x=2+3√2 find the value of x+14/x
youtu.be/7FGspP29MJA

If x=3-2√2 then find the value of √x+1/√x. If x=3-2√2 find the value of √x-1/√x.

Avi Jain Classes 2020-08-05 | If x=3-2√2 then find the value of √x+1/√x. If x=3-2√2 find the value of √x-1/√x.
If x=3-2√2 then find the value of root x+1/root x. If x=3-2√2 find the value of root x-1/root x. This question can also be used to answer the following: if x=3+2√2 find the value of √x-1/√x
#polynomials #polynomialsclass9 #polynomialsclass9byavisir #polynomialsclass9avijainclasses

If x-y=4 and xy=12 find x3-y3. If x-y=4 and xy=12 find x^3-y^3. Chapter 2 class 9 maths | Polynomials | Polynomials class 9 |
#polynomials #polynomialsclass9 #polynomialsclass9avijainclasses #avijainclasses #chapter2class9maths #mathspolynomialschapter2 #class9maths

The other important questions which you must study from Chapter 2 class 9 are as follows:

(1) If x+y=12 and xy=32, find x^2+y^2.
youtu.be/oSNwEFfEeU0

(2) If a+b=8 and a^2+b^2=48, find a^3+b^3.
youtu.be/6nH9RycuSVg

(3) If x+y=12 and xy=27, find x^3+y^3.
youtu.be/onYlEqv8myI

(4) If x-y=4 and xy=12 find x3-y3.
youtu.be/aJsM4d4-cNI

(5) If x+1/x=6 find x2+1/x2. If x+1/x=3 then find the value of x^3+1/x^3.
youtu.be/zKAETkEUfEw

(6) If x^2+1/x^2=27 find the value of x+1/x.
youtu.be/dMPdd_gHVSc

(7) If x^2+1/x^2=66 find the value of x-1/x.
youtu.be/TMhtL2wTpos

(8) If x^2+1/x^2=7, find the value of x^3+1/x^3.
youtu.be/fcZvpGCwTS0

(9) If x^2+1/x^2=18 find x^3-1/x^3.
youtu.be/nhYx3VcnE8w

(10) If x+y=9 and xy=14, find the value of x-y.
youtu.be/DtA6wDq9Vrc

(11) If x-y=5 and xy=24 find the value of (x+y)
youtu.be/U9wn-kjh5Zk

(12) If x+y=3 and xy=2 find x3-y3
youtu.be/srTcaqr_De4

(13) If x+1/x=5 find the value of x^4+1/x^4
youtu.be/jtDP9tYeYuc

(14) If x+1/x=3 find x4-1/x4
youtu.be/x-W1dv4W-hQ

(15) If x2-3x+1=0 find x5+1/x5
youtu.be/fKgc_yHoYlo

(16) If x=5-2√6 find x2+1/x2
youtu.be/LxKCYDn3SUg

(17) If x=2+√3 find the value of x^3+1/x^3
youtu.be/-z2Riv7tOxA

(18) If x=3-2√2 then find the value of √x+1/√x
youtu.be/xmxw6TDnmaI

(19) If x=5+√24 find the value of √x+1/√x.
youtu.be/SDrsEnrGGYs

(20) factorise a^2+b^2-2(ab-ac+bc). factorise 4a^2-9b^2-(2a-3b). factorise a-b-a2+b2. factorise 108a^2-3(b-c)^2. factorise 25x^2-10x+1-36y^2
youtu.be/n4O1UVLjfAU

(21) Factorise x^8-y^8. Factorise x^4+y^4. Factorise x^4-y^4. Factorise x^8+y^8. Factorise x^2+y^2.
youtu.be/e5ByU8k-fcQ

(22) Factorise: x^2+1/x^2+2. Factorise x^2+1/x^2. Factorise x^2+1/x^2+1. polynomials class 9 chapter 2.
youtu.be/Rn9hKYFf_T8

(23) Factorise x^2+1/x^2+2-2x-2/x . Factorise x^3-1/x^3-2x+2/x
youtu.be/-OEDAVczNag

(24) Factorise 12(x^2+7x)^2-8(x^2+7x)(2x-1)-15(2x-1)^2. Factorise (x^2-3x)^2-8(x^2-3x)-20.
youtu.be/HgQzxOO97xY

(25) Simplify : (x^2+x-2)(x^2-x+2)
youtu.be/mcovtpr3BqY

(26) Factorise: (x+y)^3-(x-y)^3. Factorise : (x+y)^3+(x-y)^3
youtu.be/kvb5Guu6ffI

(27) Factorise : (2x-5y)^3-(2x+5y)^3. Factorise : (2x+3y)^3-(2x-3y)^3
youtu.be/xvKiqc9ZnfI

(28) Factorise: (x+2)^3-(x-2)^3
youtu.be/iEz5ePfkJMc

(29) Factorise (a+b)^3-8(a-b)^3
youtu.be/G5rmi8mTB4I

(30) If a+b+c=9 and ab+bc+ca=26 find the value of a^3+b^3+c^3-3abc
youtu.be/i7a_-1VtzF8

(31) If a+b+c=15 and a^2+b^2+c^2=83 find the value of a^3+b^3+c^3-3abc
youtu.be/10AvVP9hwcw

(32) Find the value of x^3+y^3+15xy-125 when x+y=5
youtu.be/S8E8G413D2o

(33) if a+b+c=6 find the value of (2-a)^3+(2-b)^3+(2-c)^3-3(2-a)(2-b)(2-c).
youtu.be/6nDV1YtvZlc

(34) Prove that (x+y)^3+(y+z)^3+(z+x)^3-3(x+y)(y+z)(z+x)=2(x^3+y^3+z^3-3xyz)
youtu.be/9B9XxHzxxWQ

(35) Without actual division prove that x^4-5x^3+8x^2-10x+12 is exactly divisible by x^2-5x+6
youtu.be/muHCCg_C-g8

(36) Let p and q be the remainders when the polynomials x^3+2x^2-5ax-7 and x^3+ax^2-12x+6 are divided by (x+1) and (x-2) respectively. If 2p+q=6, find the value of a.
youtu.be/MkpKmsnJQn0

(37) If both (x-2) and (x-1/2) are the factors of px^2+5x+r, then show that p=r.
youtu.be/PYF-9BuTJuM

(38) If the polynomials ax^3+4x^2+3x 4 and x^3 4x+a leave the same remainder when divided by (x-3), find a.
youtu.be/BWjCjVOsAh4

(39) Factorise x6+5x3+8.
youtu.be/VLzw-m_2wCk

(40) Simplify (a+b)^3-(a-b)^3-6b(a^2-b^2).
youtu.be/ceSfFXP1XQY

(41) Factorise (x2+1/x2)2-4(x+1/x)+6
youtu.be/xmNvrdMITfM

(42) If a+b+c=0, then prove that (b+c)^2/3bc + (c+a)^2/3ca + (a+b)^2/3ab = 1.
youtu.be/l9RY46ykQh4

(43) If ab+bc+ca=0 , find the value of (1/a^2 - bc) + (1/b^2 - ac) + (1/c^2 - ab).
youtu.be/PrtI9BzGVmM

(44) If x=1/2-√3 find the value of x3-2x2-7x+5
youtu.be/qlZr6QwNZ1k

(45) Prove that (a+b+c)^3-a^3-b^3-c^3=3(a+b)(b+c)(c+a)
youtu.be/AgXlujkLrWM

(46) How to factorise cyclic polynomial. Factorise a(b^2-c^2)+b(c^2-a^2)+c(a^2-b^2)
youtu.be/D3KoqbBnt6s

(47) if x=2+3√2 find the value of x+14/x
youtu.be/7FGspP29MJA

If x=5-2√6 find x2+1/x2. If x=5-2√6 find x+1/x. Polynomials. Class 9 maths.

Avi Jain Classes 2020-08-05 | If x=5-2√6 find x2+1/x2. If x=5-2√6 find x+1/x. Polynomials. Class 9 maths. If x=5-2√6 find x^2+1/x^2. If x=5-2√6 find x+1/x. #polynomials #polynomialsclass9 #polynomialsclass9byavisir #polynomialsclass9avijainclasses #avijainclasses

If x-y=4 and xy=12 find x3-y3. If x-y=4 and xy=12 find x^3-y^3. Chapter 2 class 9 maths | Polynomials | Polynomials class 9 |
#polynomials #polynomialsclass9 #polynomialsclass9avijainclasses #avijainclasses #chapter2class9maths #mathspolynomialschapter2 #class9maths

The other important questions which you must study from Chapter 2 class 9 are as follows:

(1) If x+y=12 and xy=32, find x^2+y^2.
youtu.be/oSNwEFfEeU0

(2) If a+b=8 and a^2+b^2=48, find a^3+b^3.
youtu.be/6nH9RycuSVg

(3) If x+y=12 and xy=27, find x^3+y^3.
youtu.be/onYlEqv8myI

(4) If x-y=4 and xy=12 find x3-y3.
youtu.be/aJsM4d4-cNI

(5) If x+1/x=6 find x2+1/x2. If x+1/x=3 then find the value of x^3+1/x^3.
youtu.be/zKAETkEUfEw

(6) If x^2+1/x^2=27 find the value of x+1/x.
youtu.be/dMPdd_gHVSc

(7) If x^2+1/x^2=66 find the value of x-1/x.
youtu.be/TMhtL2wTpos

(8) If x^2+1/x^2=7, find the value of x^3+1/x^3.
youtu.be/fcZvpGCwTS0

(9) If x^2+1/x^2=18 find x^3-1/x^3.
youtu.be/nhYx3VcnE8w

(10) If x+y=9 and xy=14, find the value of x-y.
youtu.be/DtA6wDq9Vrc

(11) If x-y=5 and xy=24 find the value of (x+y)
youtu.be/U9wn-kjh5Zk

(12) If x+y=3 and xy=2 find x3-y3
youtu.be/srTcaqr_De4

(13) If x+1/x=5 find the value of x^4+1/x^4
youtu.be/jtDP9tYeYuc

(14) If x+1/x=3 find x4-1/x4
youtu.be/x-W1dv4W-hQ

(15) If x2-3x+1=0 find x5+1/x5
youtu.be/fKgc_yHoYlo

(16) If x=5-2√6 find x2+1/x2
youtu.be/LxKCYDn3SUg

(17) If x=2+√3 find the value of x^3+1/x^3
youtu.be/-z2Riv7tOxA

(18) If x=3-2√2 then find the value of √x+1/√x
youtu.be/xmxw6TDnmaI

(19) If x=5+√24 find the value of √x+1/√x.
youtu.be/SDrsEnrGGYs

(20) factorise a^2+b^2-2(ab-ac+bc). factorise 4a^2-9b^2-(2a-3b). factorise a-b-a2+b2. factorise 108a^2-3(b-c)^2. factorise 25x^2-10x+1-36y^2
youtu.be/n4O1UVLjfAU

(21) Factorise x^8-y^8. Factorise x^4+y^4. Factorise x^4-y^4. Factorise x^8+y^8. Factorise x^2+y^2.
youtu.be/e5ByU8k-fcQ

(22) Factorise: x^2+1/x^2+2. Factorise x^2+1/x^2. Factorise x^2+1/x^2+1. polynomials class 9 chapter 2.
youtu.be/Rn9hKYFf_T8

(23) Factorise x^2+1/x^2+2-2x-2/x . Factorise x^3-1/x^3-2x+2/x
youtu.be/-OEDAVczNag

(24) Factorise 12(x^2+7x)^2-8(x^2+7x)(2x-1)-15(2x-1)^2. Factorise (x^2-3x)^2-8(x^2-3x)-20.
youtu.be/HgQzxOO97xY

(25) Simplify : (x^2+x-2)(x^2-x+2)
youtu.be/mcovtpr3BqY

(26) Factorise: (x+y)^3-(x-y)^3. Factorise : (x+y)^3+(x-y)^3
youtu.be/kvb5Guu6ffI

(27) Factorise : (2x-5y)^3-(2x+5y)^3. Factorise : (2x+3y)^3-(2x-3y)^3
youtu.be/xvKiqc9ZnfI

(28) Factorise: (x+2)^3-(x-2)^3
youtu.be/iEz5ePfkJMc

(29) Factorise (a+b)^3-8(a-b)^3
youtu.be/G5rmi8mTB4I

(30) If a+b+c=9 and ab+bc+ca=26 find the value of a^3+b^3+c^3-3abc
youtu.be/i7a_-1VtzF8

(31) If a+b+c=15 and a^2+b^2+c^2=83 find the value of a^3+b^3+c^3-3abc
youtu.be/10AvVP9hwcw

(32) Find the value of x^3+y^3+15xy-125 when x+y=5
youtu.be/S8E8G413D2o

(33) if a+b+c=6 find the value of (2-a)^3+(2-b)^3+(2-c)^3-3(2-a)(2-b)(2-c).
youtu.be/6nDV1YtvZlc

(34) Prove that (x+y)^3+(y+z)^3+(z+x)^3-3(x+y)(y+z)(z+x)=2(x^3+y^3+z^3-3xyz)
youtu.be/9B9XxHzxxWQ

(35) Without actual division prove that x^4-5x^3+8x^2-10x+12 is exactly divisible by x^2-5x+6
youtu.be/muHCCg_C-g8

(36) Let p and q be the remainders when the polynomials x^3+2x^2-5ax-7 and x^3+ax^2-12x+6 are divided by (x+1) and (x-2) respectively. If 2p+q=6, find the value of a.
youtu.be/MkpKmsnJQn0

(37) If both (x-2) and (x-1/2) are the factors of px^2+5x+r, then show that p=r.
youtu.be/PYF-9BuTJuM

(38) If the polynomials ax^3+4x^2+3x 4 and x^3 4x+a leave the same remainder when divided by (x-3), find a.
youtu.be/BWjCjVOsAh4

(39) Factorise x6+5x3+8.
youtu.be/VLzw-m_2wCk

(40) Simplify (a+b)^3-(a-b)^3-6b(a^2-b^2).
youtu.be/ceSfFXP1XQY

(41) Factorise (x2+1/x2)2-4(x+1/x)+6
youtu.be/xmNvrdMITfM

(42) If a+b+c=0, then prove that (b+c)^2/3bc + (c+a)^2/3ca + (a+b)^2/3ab = 1.
youtu.be/l9RY46ykQh4

(43) If ab+bc+ca=0 , find the value of (1/a^2 - bc) + (1/b^2 - ac) + (1/c^2 - ab).
youtu.be/PrtI9BzGVmM

(44) If x=1/2-√3 find the value of x3-2x2-7x+5
youtu.be/qlZr6QwNZ1k

(45) Prove that (a+b+c)^3-a^3-b^3-c^3=3(a+b)(b+c)(c+a)
youtu.be/AgXlujkLrWM

(46) How to factorise cyclic polynomial. Factorise a(b^2-c^2)+b(c^2-a^2)+c(a^2-b^2)
youtu.be/D3KoqbBnt6s

(47) if x=2+3√2 find the value of x+14/x
youtu.be/7FGspP29MJA

If a+b+c=9 and ab+bc+ca=26 find the value of a^3+b^3+c^3-3abc. Polynomials | class 9 maths |.

Avi Jain Classes 2020-08-02 | If a+b+c=9 and ab+bc+ca=26 find the value of a^3+b^3+c^3-3abc. If a+b+c=9 and ab+bc+ca=26 find the value of a3+b3+c3-3abc. Polynomials class 9. #polynomials #polynomialsclass9 #polynomialsclass9avijainclasses #avijainclasses

If a+b+c=15 and a^2+b^2+c^2=83 find the value of a^3+b^3+c^3-3abc. Polynomials | class 9 maths |

Avi Jain Classes 2020-08-02 | If a+b+c=15 and a^2+b^2+c^2=83 find the value of a^3+b^3+c^3-3abc. If a+b+c=15 and a2+b2+c2=83 find the value of a3+b3+c3-3abc. Polynomials class 9. Polynomials class 9 important questions. #polynomials #polynomialsclass9 #polynomialsclass9avijainclasses #avijainclasses

Prove that (x+y)^3+(y+z)^3+(z+x)^3-3(x+y)(y+z)(z+x)=2(x^3+y^3+z^3-3xyz).

Avi Jain Classes 2020-08-01 | Prove that (x+y)^3+(y+z)^3+(z+x)^3-3(x+y)(y+z)(z+x)=2(x^3+y^3+z^3-3xyz). Prove that (x+y)3+(y+z)3+(z+x)3-3(x+y)(y+z)(z+x)=2(x3+y3+z3-3xyz). Polynomials class 9. #polynomials #polynomialsclass9 #polynomialsclass9avijainclasses #provetheidentity #avijainclasses

If x^2+1/x^2=27 find the value of x+1/x. If x2+1/x2=27 find the value of x+1/x. Polynomials class 9.

Avi Jain Classes 2020-08-01 | If x^2+1/x^2=27 find the value of x+1/x. If x2+1/x2=27 find the value of x+1/x Polynomials class 9 important questions.