81的3次幂与27的4次幂哪个大
人气:498 ℃ 时间:2019-10-30 23:20:13
解答
81³
=(3^4)³
=3^(4×3)
=3^12
27^4
=(3³)^4
=3^(3×4)
=3^12
所以两个相等
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