PRACTICE TO TOPIC 22 EVALUATING TRIGONOMETRIC FUNCTIONS
Name: ___________________________
Use basic trigonometric functions to evaluate:
1.
cos2 30o
2.
 tan60o
3.
sin2 45o
4.
sin2 45o  cos2 45o
5.
sin300
cos 600
6.
2sin60o
7.
sin30o  cos60o
8.
3  cot 30o 
9.
sin45o cos 45o
11.
4  cos 45o 
10.
2
12.
2
1
cos 300
sin30o  tan 45o

tan  600 

2
On the diagram below,
13. Which line segment is equal to the exact value of
sinQ ?
14. Which line segment is equal to the exact value of
cosQ ?
15. Which line segment is equal to the exact value of 1?
2
1
3
3
9
1
2
2
OT
ST
OS
1
1
4
1
1
6
3
4
 3