1.log5(lgx)=1
解指数对数方程(5^lgx)-(3^(lgx-1))=(3^(lgx+1))-(5^(lgx-1))
解下列方程lgx+lgx^2+lgx^3+……+lgx^n=n(n+1)
log4(log5 a)=log3(log5 b)=1,求a/b.
2log5^10+log5^0.25=?
x^lgx=5*2^(lgx^2-1)
(1/log2 10) + (1/log5 10) =lg2 + lg5
对数函数lg[x^(lgx+1)] =lg100如何化简为(lgx+1)lgx=2
log(x)(100)-lgx+1=0
y=lgX+4/(logx-1)
lgx=-1,x等于多少
画出曲线的图像lgX/lg(1+y)+lgX/lg(1-y)=2(lgX*lgX)/[lg(1+y)*lg(1-y)]只
已知log5 (3)=a,log5(4)=b ,用a,b表示log5(24)