题目内容
已知cos(α-
)=-
,则sin(
-α)的值为______.
| π |
| 6 |
| 1 |
| 3 |
| 2π |
| 3 |
∵cos(α-
)=-
,
∴sin(
-α)=sin[
-(α-
)]=cos(α-
)=-
.
故答案为:-
| π |
| 6 |
| 1 |
| 3 |
∴sin(
| 2π |
| 3 |
| π |
| 2 |
| π |
| 6 |
| π |
| 6 |
| 1 |
| 3 |
故答案为:-
| 1 |
| 3 |
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题目内容
| π |
| 6 |
| 1 |
| 3 |
| 2π |
| 3 |
| π |
| 6 |
| 1 |
| 3 |
| 2π |
| 3 |
| π |
| 2 |
| π |
| 6 |
| π |
| 6 |
| 1 |
| 3 |
| 1 |
| 3 |