Section 6.2

Trigonometric Functions

Unit Circle Approach;

OBJECTIVE 1

1 2 6Let be a real number and let = , be a point

5 5

on the unit circle that corresponds to .

Find the values of sin , cos , tan , csc , sec , and cot .

t P

t

t t t t t t

OBJECTIVE 2

(a) sin(5) (b) cos(–540°)

OBJECTIVE 3

23

(a) sin180 cos 45 (b) sin cos sin (c) csc tan4 2 4 4

OBJECTIVE 4

OBJECTIVE 5

Find: (a) cos135 (b) tan (c) sin 3154

7 2Find: (a) tan (b) sin ( 120 ) (c) cos

6 3

OBJECTIVE 6

(a) cos 48 (b) tan (c) sec10 12

OBJECTIVE 7

(-3, 3)