Finding the BIGGEST rectangle under y=x^3 (but NO calculus!) @blackpenredpen

Uploaded December 2024 | Updated September 2026, 2 weeks ago

We will solve a typical calculus optimization problem without using calculus derivative. The goal is to find the biggest rectangle under y=x^3 from x=0 to x=3 and we can actually use AM-GM inequality to solve this!
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