已知A^(2/3)=4/9(A大于0),则log(2/3)A=?

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已知A^(2/3)=4/9(A大于0),则log(2/3)A=?

A^(2/3)=4/9
log(A,4/9)=2/3
log(A,2/3)=1/3
log(2/3)A=3