1.5
log9 27
=lg27/lg9
=lg3^3/lg3^2
=3/2
log9 27=log(3的2次方)(3的3次方)=2/3log3 3=2/3
标签:log9
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1.5
log9 27
=lg27/lg9
=lg3^3/lg3^2
=3/2
log9 27=log(3的2次方)(3的3次方)=2/3log3 3=2/3
标签:log9