Lecture 14: Non-independent variables

Lecture 14: Non-independent variables
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Taught by OCW
Denis Auroux. 18.02 Multivariable Calculus, Fall 2007. (Massachusetts Institute of Technology: MIT OpenCourseWare). http://ocw.mit.edu (Accessed March 15, 2009). License: Creative Commons Attribution-Noncommercial-Share Alike.
Learn more techniques for finding values when functions have non-independent variables.
  • How do you find differentials of a function when the variables are not independent?
  • What is the rate of change of the area of a right triangle with respect to theta?
  • If A=1/2absin(theta) and a = bsin(theta), then what is dA/d(theta) for a triangle?
This video does a great job of completely explaining several problems dealing with functions with non-independent variables. Several different methods of finding the rate of change of the area of a right triangle with respect to theta, an angle of the triangle are explained. Differentials and the chain rule are given as two systematic methods for finding the solution to these problems.
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Reviewed by MathVids Staff on March 15, 2009.
 
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