Uploaded August 2025 | Updated September 2026, 3 weeks ago

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In this video, I derive the Euler-Lagrange Equation which is widely used in classical mechanics.

Integration by Parts Formula Proof: youtu.be/Z_EkmncgG0U?si=H3rHSEPIBVZ8uM0R

#physics #maths #science #newton #einstein #feynman #math #classicalmechanics #calculus