1. Trigonometric Integrals

2. Antiderivatives that Deal with the Trigonometry We already know the following from Chapter 4: But what are the integrals of tangent, secant, cosecant, and cotangent?

3. Example 1 Find. Define u and du: Substitute to replace EVERY x and dx: Substitute back to Leave your answer in terms of x. Integrate. Trick:

4. Example 2 Find Define u and du: Substitute to replace EVERY x and dx: Solve for dx Substitute back to Leave your answer in terms of x. Integrate.

5. Integrals Involving Trigonometric Functions Cotangent and Secant can be found in a similar manner as Tangent and Cosecant (respectively). The work is in the textbook.