题目内容
(文科)已知α∈(
,π),sinα=
,则tan(α+
)=______.
| π |
| 2 |
| 3 |
| 5 |
| π |
| 4 |
∵α∈(
,π),sinα=
,∴cosα=-
,∴tanα=-
.
∴tan(α+
)=
=
,
故答案为:
.
| π |
| 2 |
| 3 |
| 5 |
| 4 |
| 5 |
| 3 |
| 4 |
∴tan(α+
| π |
| 4 |
| tanα+1 |
| 1-tanα |
| 1 |
| 7 |
故答案为:
| 1 |
| 7 |
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