题目内容
用计算器求下列各式的值(精确到0.001):
(1)-
≈
=
≈
≈
(1)-
| 94.3 |
-9.711
-9.711
(2)| 3 | 0.43 |
0.755
0.755
(3)| 55225 |
235.000
235.000
(4)| 3 | 34012224 |
324.000
324.000
.分析:先利用计算器求值,然后按要求取近似值即可.
解答:解:(1)-
≈-9.7108≈-9.711
(2)
≈0.754784≈0.755;
(3)
=235.000;
(4)
=324.000.
故答案为:-9.711,0.755,235.000,324.000.
| 94.3 |
(2)
| 3 | 0.43 |
(3)
| 55225 |
(4)
| 3 | 34012224 |
故答案为:-9.711,0.755,235.000,324.000.
点评:本题考查了用计算器进行数的开方,解题的关键是按要求取近似值.
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