Accel. Math 3/ Math 4
Unit Circle Trig Practice Answers
Name ________________________
Using your unit circle, evaluate the following trig expressions. EXACT answers only.
1.sin  30

2.sin 120
3
2

4.tan  30


1
2

6.tan  210
3
2
7.sin  30


8.cos  450
1
2


11.cos  675

12.tan  45
2
2

14.csc  330
2 3
3


17.csc 180
19.cot  570

20.csc  30
22.csc  135
23.sec  780
2

3

18. cot 135

2


15.cot  210
2
3

1
16.sec  90
 2
9.tan  270
undefined
3
3
13.sec  30

3
3
0
10.tan  150

2
2

5.cos  330
3
3
3.cos  225

21.sec  120
2

24.cot  270
0

