Khan Academy: Definite Integrals: Area Between Curves With Multiple Boundaries

Sal beautifully explains how to subtract two polynomial expressions with multiple variables. He groups like terms and the distributive property to create a single expression.

While explaining how to add polynomial expressions with multiple variables, Sal uses academic vocabulary and a clear thinking process. This video is relatively short and would be appropriate for students working on homework or prepping...

This video shows you how to find the area between two curves. [4:08]

By integrating the difference of two functions, you can find the area between them. Created by Sal Khan.

More examples of using definite integrals to calculate the area between curves

This video shows how to find the exact area under a curve by evaluating a definite integral.

This video shows how to evaluate a definite integral using u substitution.

This video shows how to find the definite integral of a periodic function. The problem is solved using integration by parts.

This activity will illustrate the idea of using the definite integral to represent the area bounded by two curves.

Video lesson finishing an example of finding the area between two curves and solving another example. [9:57]