Section 7.1

The Inverse Sine, Cosine, and Tangent Functions

Review of Properties of Functions and Their Inverses

OBJECTIVE 1

1 3Find the exact value of: sin

2

1 2Find the exact value of: sin

2

OBJECTIVE 2

1 1

Find an approximate value of:

3 2(a) sin (b) sin

5 3

OBJECTIVE 3

-1 1 3(a) sin sin (b) sin sin

12 5

-1 -1(a) sin sin 0.4 (b) sin sin 1.2

1 2Find the exact value of: cos

2

1 1Find the exact value of: cos

2

1 -1 -1

Find the exact value of:

2(a) cos cos (b) cos cos 0.6 (c) cos cos 1.8

3

1 13(a) tan (b) tan 1

3

OBJECTIVE 4

3cos 2x

OBJECTIVE 5

1 1 2tan 5 tan

3 3x x