Khan Academy: Trig Substitution: Trig and U Substitution Together (Part 2)

In this part two video, Sal finishes the trigonometric word problem of the wayward ship captain. He wisely continues the algebra work on the problem before finally turning to his calculator for the very last calculation.

Students can watch a video to review trig and U substitution.

Part 2 of a 3-part video series showing how to calculate the surface integral of a torus. Video continues to find the surface area of the torus by calculating a cross product. [10:29]

Video shows working a problem from the IIT JEE test which involves algebraic manipulation and using what the argument of complex numbers is to visually reason if two given equations about arguments are true. [7:26]

This video provides an example of using trigonometric substitution (and trigonometric identities) to solve an integral.

Students can watch a short video to review using the tangent for trig substitution.

This video demonstrates how to solve a given system of equations by using substitution. [3:44]

This video demonstrates how to solve a word problem by setting up and solving a system of equations. Uses the substitution method. [5:58]

Another example of finding an anti-derivative using trigonometric substitution in this short video.

Introduces the concept of trigonometric substitution. [7:15]