aw_rockswold_precalculu_2| Precalculus through Modeling and Visual|Trigonometric Identities and Equations|Checking Basic Concepts|Sections 7.1 and 7.2

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Checking Basic Concepts
Sections 7.1 and 7.2

1. Determine the quadrant containing if cot < 0 and sin > 0.

2. Find the other trigonometric functions of using the given information.

a. sin= and cos =

b. sec = and sin< 0

c. tan = and cos =

3. Simplify each expression.

a.	(1 - sin )(1 + sin )
b.	tan² t csc² t - 1

4. Factor the trigonometric expression.

a. tan² t - 1

b. 3 sin² t + sin t - 2

5. Verify each identity.

a. (1 - sin² )(1 + cot² ) = cot²

b. = csc t - sin t