5-1: Day A: Homework Name: Student Centered/Homework: 1, 2, 5, 7, 13 ...

5-1: Day A: Homework

Name: _____________________

Student Centered/Homework: 1, 2, 5, 7, 13, 14, 23, 24, 38, 39, 55, 57

In Exercises 1 and 2, evaluate without using a calculator. Use the Pythagorean identities rather than reference triangles. (See Example 1.)

In Exercises 5 and 7, tell whether or not is an identity. In Exercises 13, 14, 23, 24, 38, and 39, prove the identity.

In Exercises 52? 57, match the function with an equivalent expression from the following list. Then confirm the match with a proof. (The matching is not one- toone.)

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