题目内容
设f(x)=
,则,f(f(
))=______.
|
| 1 |
| 2 |
∵f(
)=|
-1|-2=-
,
∴f(f(
))=f(-
)=
=
.
故答案为:
.
| 1 |
| 2 |
| 1 |
| 2 |
| 3 |
| 2 |
∴f(f(
| 1 |
| 2 |
| 3 |
| 2 |
| 1 | ||
1+(-
|
| 4 |
| 13 |
故答案为:
| 4 |
| 13 |
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1+(-
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