2. cot x = sec x = sin x = csc x = 3. cos = csc = tan = cot = 0 0 0 0

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2. cot x =
3
sec x =
2 3
3
sin x =
1
2
csc x = ­2
2
0
3. cos =
2
2
0
csc =
­1
0
tan =
­1
0
cot = 11. d
17. b
12. e
18. c
13. a
19. e
14. f
20. a
15. b
21. f
29. 1
2
30. cos x
31. ­tan x
2
32. sin x
2
37. sin x
4
38. sec x
2
2
39. sin x tan x
40. sec x + 1
4
41. sec x
4
42. sin x
46. ­1
2
48. 9cos x
2
49. 2csc x 2
50. ­2cot x
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