发布网友 发布时间:2024-10-09 13:08
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热心网友 时间:2024-12-05 00:30
a^b=b^ablog(3,a)=alog(3,b)b=9a代人9alog(3,a)=alog(3,9a)9alog(3,a)=alog(3,3^2*a)=a(log(3,3^2)+log(3,a))=a(2+log(3,a))即 9log(3,a)=2+log(3,a)8log(3,a)=2log(3,a)=1/4a=3^(1/4)log(3,a)表示3为底数,a为幂的指...