1-tanθ |
2+tanθ |
cos2θ |
1+sin2θ |
A.3 | B.-3 | C.-2 | D.-
|
cos2θ |
1+sin2θ |
cos 2θ-sin 2θ |
sin 2θ+2sinθcosθ+cos 2θ |
cos2θ |
1+sin2θ |
1-tan2θ |
tan2θ+2tanθ+1 |
1-tanθ |
2+tanθ |
1 |
2 |
cos2θ |
1+sin2θ |
1-tan2θ |
tan2θ+2tanθ+1 |
cos2θ |
1+sin2θ |
1-(-
| ||||
(-
|
2 |
π |
2 |
π |
4 |
1 |
2 |
sin2α-cos2α |
1+cos2α |
a |
b |
c |
a |
c |
b |
c |
π |
6 |
α-β |
4 |
m |
n |
π |
3 |
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