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数学
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log(2)^3*log(3)^4 过个寒假全忘了···速度~
人气：421 ℃ 时间：2020-05-14 00:36:55
解答
换底公式
=(lg3/lg2)(lg4/lg3)
=lg4/lg2
=2lg2/lg2
=2
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