1.
− , + , − , − , + , −
+ , − , + , + , + , −
3. − , +
5. − , −
7. + , +
9. − , +
11. + , −
13. − , +
15. + , +
17.
sin θ = 15–√ , cos θ = 25–√ , tan θ = 12 , cot θ = 2 , sec θ = 125–√ , csc θ = 5–√
19.
sin θ = − 313−−√ , cos θ = − 213−−√ , tan θ = 32 , cot θ = 23 , sec θ = − 1213−−√ , csc θ = − 1313−−√
21.
sin θ = 1213 , cos θ = − 513 , tan θ = − 125 , cot θ = − 512 , sec θ = − 135 , csc θ = 1312
23.
sin θ = − 229−−√ , cos θ = 529−−√ , tan θ = − 25 , cot θ = − 52 , sec θ = 1529−−√ , csc θ = − 1229−−√
25. I, II
27. II, IV
29. II, III
31. II
33. II
35. IV
37. I
39. II
41. −
43. −
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