log2 4=2log3 9=3
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log2 4=2
log3 9=3
log3 9=3
![log2 4=2log3 9=3](/uploads/image/z/11948255-71-5.jpg?t=log2+4%3D2log3+9%3D3)
第一个正确,第二个不对,log3 9=2,意思是9是3的二次方.同理,第一个题代表4是2的二次方.
log2(3)+log3(5)+log3(2)=?
log2 4=2log3 9=3
(log3 4+log3 8)(log2 3+log2 9)+(log3 根号2)(log9 7)/(log1/3 7)
(log3^4+log5^2)(log2^9+log2^根号3)
log2 3×log3 7=log2 7
log2(3)=a,log3(7)=b.log12(56)=log3(7*8)=log3(7)+3log3(2)
log2^25*log3^2倍根号2*log5^9=
log2^5*log3^2倍根号2*log5^9=
[log2(3)+log4(9)][log3(4)+log9(2)]等于
设log2(3)=t,log3(4)=?
已知log3^2=a则log2^9等于多少
我是这样做的log2(3)*log3(5)*log5(49)*log7(64)=log2(3)*log3(5)*2log