题目内容
82011•(-0.125)2012=
.
-0.125
-0.125
;(-2012+π)0×5-2| 1 |
| 25 |
| 1 |
| 25 |
分析:(1)逆用同底数的幂的乘法法则,化成(-8×0.125)2011×(-0.125)即可求解;
(2)首先计算0次幂,和负指数次幂,然后进行乘法运算即可求解.
(2)首先计算0次幂,和负指数次幂,然后进行乘法运算即可求解.
解答:解:82011•(-0.125)2012
=(-8×0.125)2011•(-0.125)
=-1×(-0.125)
=-0.125;
(-2012+π)0×5-2
=1×
=
.
=(-8×0.125)2011•(-0.125)
=-1×(-0.125)
=-0.125;
(-2012+π)0×5-2
=1×
| 1 |
| 25 |
=
| 1 |
| 25 |
点评:本题考查了幂的运算,正确理解运算律以及运算性质是关键.
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