题目内容
计算:
-1=
| 3 |
| ||
-
| 4 |
| 5 |
-
.| 4 |
| 5 |
分析:先算减法,再求出-
的立方根即可.
| 64 |
| 125 |
解答:解:
=
=-
,
故答案为:-
.
| 3 |
| ||
| 3 | -
| ||
| 4 |
| 5 |
故答案为:-
| 4 |
| 5 |
点评:本题考查了立方根的应用,注意:负数有一个负的立方根.
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题目内容
| 3 |
| ||
| 4 |
| 5 |
| 4 |
| 5 |
| 64 |
| 125 |
| 3 |
| ||
| 3 | -
| ||
| 4 |
| 5 |
| 4 |
| 5 |