题目内容
已知函数f(x)=
,试求f(-
)+f(
)的值
|
| 11 |
| 6 |
| 11 |
| 6 |
f(-
)=sin(-
π)=-sin
π=-sin(2π-
)=sin
=
f(
)=f(
)-1=f(-
)-2=sin(-
)-2=-
∴f(-
)+f(
)=
-
=-2
| 11 |
| 6 |
| 11 |
| 6 |
| 11 |
| 6 |
| π |
| 6 |
| π |
| 6 |
| 1 |
| 2 |
| 11 |
| 6 |
| 5 |
| 6 |
| 1 |
| 6 |
| π |
| 6 |
| 5 |
| 2 |
∴f(-
| 11 |
| 6 |
| 11 |
| 6 |
| 1 |
| 2 |
| 5 |
| 2 |
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