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a^m*a^n=4,a^m/a^n=6,求mn的值
人气:452 ℃ 时间:2019-10-11 07:54:41
解答
由a^m*a^n=4,a^m/a^n=6得
a^m=2√6,a^n=√6/3
m=3/2*log(a)2+1/2*log(a)3,n=1/2*log(a)2-1/2*log(a)3
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