51:58

Calculus 3 Lecture 14.1: INTRODUCTION to Double Integrals (Background Info)

13:18

Understanding Lagrange Multipliers Visually

2:14:36

Calculus 3 Lecture 13.2: Limits and Continuity of Multivariable Functions (with Squeeze Th.)

2:37:17

Calculus 3 Lecture 13.6: Finding Directional Derivatives and Gradients

50:10

Lec 13: Lagrange multipliers | MIT 18.02 Multivariable Calculus, Fall 2007

14:59

Intuition and Examples for Lagrange Multipliers (Animated)

3:23:48

Calculus 3 Lecture 14.2: How to Solve Double/Repeated/Iterated Integrals

1:41:47

Calculus 3 Lecture 13.7: Finding Tangent Planes and Normal Lines to Surfaces