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lg27/lg4除以lg3/lg2的值为_____
人气:325 ℃ 时间:2020-10-02 03:09:18
解答
=lg27/lg4乘以lg2/lg3
=lg3^3/lg2^2乘以lg2/lg3
=3lg3/2lg2乘以lg2/lg3
=3/2
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