|
|
|
|
-cos2a |
1+sinα |
sin2α |
1+cosα |
-(1-sin2α) |
1+sinα |
1-cos2α |
1+cosα |
5 |
12 |
A.-
| B.-
| C.
| D.
|
2sinα-3cosα |
4cosα-9sinα |
1 |
5 |
1-sin2170° |
A.cos170° | B.-cos170° | C.±cos170° | D.±|cos170°| |
5 |
12 |
A.
| B.-
| C.
| D.-
|
1+sinx |
cosx |
1 |
2 |
cosx |
sinx-1 |
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