| ||
sin160°-
|
2cos(
| ||||
4cos(-a)+sin(-2π-a) |
| ||
sin(180°-20°)-cos20° |
| ||
sin20°-cos20° |
| ||
sin20°-cos20° |
cos20°-sin20° |
sin20°-cos20° |
2sina+3cosa |
4cosa-sina |
2tana+3 |
4-tana |
2×3+3 |
4-3 |
1 |
2 |
π |
2 |
1 |
3 |
A.-
| B.
| C.
| D.-
|
5 |
4 |
5 |
sin(435°-α)+sin(α-165°) |
cos(195°+α) |
| ||
3 |
π |
2 |
© 2017-2019 超级试练试题库,All Rights Reserved.