(-8)的2n-1次方乘0.125的2n+1次方 财富值46

2016-03-30 19:03发布

快快快,亲们,拜托惹

2条回答

您好,笨鸟为您解答:

(-8)^(2n-1)×0.125^(2n+1)

=(-8)^(2n+1-2)×0.125^(2n+1)

=(-8)^(2n+1)×(-8)²×0.125^(2n+1)

=【(-8)×0.125】^(2n+1)×(-8)²

=(-1)^(2n+1)×64

=(-1)×64

=-64

 

满意请采纳,谢谢!!

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