15: Lagrange Multipliers - Valuable Vector Calculus

Lagrange multipliers example problem: https://youtu.be/sSwKKFORPFM Explanation of directional derivatives and gradient being perpendicular to contour lines: https://youtu.be/v98uipDYuqU Explanation of the dot product: https://youtu.be/y-kafkvDkFg Lagrange multipliers are extremely useful for constrained optimization problems. Here we go over the basics of a proof of the method! Full Valuable Vector Calculus playlist: https://www.youtube.com/playlist?list=PLug5ZIRrShJHgsWPng59fFFoqn183aO-1 New math videos every Monday and Friday. Subscribe to make sure you see them!