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若m为正整数,3^2m*4^2m*36^m/72^2m等于
人气:452 ℃ 时间:2020-06-06 01:15:29
解答
3^2m*4^2m*36^m/72^2m
=9^m*16^m*36^m / 72^m*72^m
=154^m*36^m / 72^m*36^m*2^m
=1^m
=1
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