原式=[log(2的平方)3+log(2的三方)3][log(3)2+log(3的平方)2的三方] =[0.5log(2)3+三分之一log(2)3][log(3)2+二分之三(3)2] =[六分之五log(2)3 ][二分之五log(3)2] =十二分之二十五(lg3除以lg2)(lg2除以lg3) =十二分之二十五 先化成同底对数,再运用恒等式,再运用换底公式,得出结果.手动,欢迎追加分.
(log(4)3+log(8)3)(log(3)2+log(9)8) 怎么个思路
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