问题标题:
log3(27开四次方/3)xlog5[4^1/2log210-(3根号3)2/3-7log(2)3]
问题描述:
log3(27开四次方/3)xlog5[4^1/2log210-(3根号3)2/3-7log(2)3]
李静回答:
题目应是log3(27开四次方/3)xlog5[4^1/2log210-(3根号3)2/3-7^log72]
=log3(3^(1/4))xlog5[2^log210-(3^(3/2))^2/3-2]
=1/4xlog5[10-3-2]
=1/4xlog55
=1/4
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