计算:负八分之一的2007次幂乘8的2008次幂等于多少?
负八分之一的2007次幂乘8的2008次幂等于多少?中午要交!
人气:474 ℃ 时间:2019-12-10 18:19:16
解答
负8分之1用-1/8表示,乘方用^表示
===============
(-1/8)^2007×8^2008
=[(-1/8)×8]^2007×8
=(-1)^2007×8
=(-1)×8
=-8
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