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已知a^(2/3)=4/9(a>0),则log(2/3)a=?
人气:212 ℃ 时间:2020-09-30 16:22:00
解答
a^(2/3)=4/9→log(2/3)[a^(2/3)]=log(2/3)[(2/3)^2]→2/3*log(2/3)a=2→log(2/3)a=3
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