Exact trigonometric values

1. 1.
   What is the exact value of tan 30°?
   a)√3b)√32c)√33d)-1
2. 2.
   What is the exact value of sin 270°?
   a)1b)√33c)-12d)-1
3. 3.
   What is the exact value of sin 150°?
   a)√32b)√3c)-1d)12
4. 4.
   What is the exact value of cos 60°?
   a)√33b)-1c)√3d)12
5. 5.
   What is the exact value of sin 90°?
   a)12b)√3c)√22d)1
6. 6.
   What is the exact value of sin 150°?
   a)√22b)√32c)12d)1
7. 7.
   What is the exact value of cos 90°?
   a)√32b)-12c)0d)12
8. 8.
   What is the exact value of cos 60°?
   a)0b)1c)12d)√22
9. 9.
   What is the exact value of cos 120°?
   a)-12b)-1c)1d)12
10. 10.
    What is the exact value of sin 150°?
    a)12b)-12c)√33d)√32
11. 11.
    What is the exact value of cos 45°?
    a)√33b)√32c)√22d)1
12. 12.
    What is the exact value of sin 0°?
    a)√22b)-1c)0d)√32
13. 13.
    What is the exact value of cos 0°?
    a)-12b)√3c)√22d)1
14. 14.
    What is the exact value of cos 0°?
    a)12b)√33c)1d)√32
15. 15.
    What is the exact value of sin 90°?
    a)√33b)1c)√32d)0
16. 16.
    What is the exact value of cos 45°?
    a)0b)12c)-12d)√22
17. 17.
    What is the exact value of sin 90°?
    a)√22b)1c)√32d)√3
18. 18.
    What is the exact value of tan 30°?
    a)√22b)√3c)√33d)0
19. 19.
    What is the exact value of cos 0°?
    a)-12b)√33c)√32d)1
20. 20.
    What is the exact value of sin 45°?
    a)√3b)-1c)-12d)√22

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