题目内容
-(-1
)的倒数是
.
| 3 |
| 4 |
| 4 |
| 7 |
| 4 |
| 7 |
分析:先化简-(-1
)=
,再利用倒数的定义求
的倒数即可.
| 3 |
| 4 |
| 7 |
| 4 |
| 7 |
| 4 |
解答:解:-(-1
)=
,
的倒数为
.
故答案为
.
| 3 |
| 4 |
| 7 |
| 4 |
| 7 |
| 4 |
| 4 |
| 7 |
故答案为
| 4 |
| 7 |
点评:本题考查了倒数的定义:a的倒数为
(a≠0).
| 1 |
| a |
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