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(log8^27)/(log4^9)的值
人气:389 ℃ 时间:2020-06-11 13:44:40
解答
(log8^27)/(log4^9)
=log2^3(3^3)/log2^2(3^2)
=3/3*log2(3)/2/2*log2(3)
=log2(3)/log2(3)
=1
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