题目内容
| π |
| 2 |
| 3 |
| 2 |
分析:按照实数的运算法则依次计算,注意|2
-3
|=3
-2
.
| 3 |
| 2 |
| 2 |
| 3 |
解答:解:原式=
-(3
-2
)
=
-3
+2
≈0.79.
| π |
| 2 |
| 2 |
| 3 |
=
| π |
| 2 |
| 2 |
| 3 |
≈0.79.
点评:本题主要考查了实数的运算,解题需注意:负数的绝对值是正数.
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| π |
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| 2 |
| 3 |
| 2 |
| 2 |
| 3 |
| π |
| 2 |
| 2 |
| 3 |
| π |
| 2 |
| 2 |
| 3 |