题目
已知f(x)=sin(x+
)−tanα•cosx
π |
6 |
提问时间:2021-03-31
答案
(1)f(
)=
所以sin(
+
)−tanα•cos
=
,
tanα=
所以tanα=1;
(2)由(1)得:f(x)=sin(x+
)−cosx=
π |
3 |
1 |
2 |
π |
3 |
π |
6 |
π |
3 |
1 |
2 |
1 |
2 |
1 |
2 |
(2)由(1)得:f(x)=sin(x+
π |
6 |
|