log5^25=?
2log5(25)-3log2(64)=?
2log5^10+log5^0.25=?
log2^25*log3^2倍根号2*log5^9=
已知log5 (3)=a,log5(4)=b ,用a,b表示log5(24)
已知log(32)9=P,log(27)25=q试用P,q表示log5
已知log9(8)=p,log27(25)=q,试用p,q表示log5(2)
log3^10=a,log5^25=b,求log4^45
x的log5为底x-1对数次方=25
log2 25*log3 4 *log5 9
log5[log4(log3 81)]=0
比较P=log4(5) Q=log5(4) R=log4(log5[4])的大小
log4(log5 a)=log3(log5 b)=1,求a/b.