5 |
4 |
5 |
sin(435°-α)+sin(α-165°) |
cos(195°+α) |
5 |
|
|
cosα |
sinα |
1 |
2 |
sin(75°-α)+sin(α-180°+15°) |
cos(180°+15°+α) |
sin(90°-15°-α)-sin(180°-α-15°) |
-cos(15°+α) |
cos(15°+α)-sin(α+15°) |
-cos (15°+α) |
sin(α+15°) |
cos(α+15°) |
| ||
|
3 |
4 |
1 |
4 |
| ||
3 |
π |
2 |
π |
2 |
A.cosα | B.sinα | C.-cosα | D.-sinα |
4 |
5 |
sin(-α)cos(π+α)cos(
| ||
cos(π-α)sin(2π+α)tan(π+α) |
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