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(-0.25)的2005次方乘(-4)的2004次方的值为?
人气:295 ℃ 时间:2019-09-29 04:10:27
解答
(-0.25)^2005×(-4)^2004
= (-0.25)×(-0.25)^2004×(-4)^2004
= (-0.25)×[(-0.25)^2004×(-4)^2004]
= (-0.25)×[(-0.25)×(-4)]^2004
= (-0.25)×1^2004
= -0.25×1
= -0.25
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