f(-x) = log a (-x+b)/(-x-b) = log a (x-b)/(x+b) = -log a (x+
2个回答
log a (-x+b)/(-x-b),分子分母同时乘以-1
= log a (x-b)/(x+b),真数取倒数
= -log a (x+b)/(x-b)
相关问题
2log(b)x=log(a)x+log(c)x
若f(x)=x2-x+b,且f(log2a)=b,log2[f(a)]=2(a≠1).
若f(x)=x^2-x+b,且f(log2(a))=b,log2[f(a)]=2(a不等于1),求f(log2(x))的
若f(x)=x平方-x+b,且f(log(2)a)=b,log(2)f(a)=2{a>0且a不等于1}.1、求f(log
若f(x)=x^2-x+b,且f(log2^a)=b,log2^f(a)=2(a不等于1),求f(log2^x)的最小值
已知log(a)x=1,log(b)x=2,log(c)x=4,则log(abc)x=?
设函数f(x)=x的平方-x+b且f(log2a)=b,log2[f(a)]=2(a不等于1),求f(log2x)的最小
若定义运算f (a * b)={a,(a≥b) b,(a<b)}则函数f(log2(1+x)*log2(1-x))的值域
对数换底公式证明log(a)(b)=log(c)(b)/log(c)(a)设 log(a)(b)=x log(c)(b)
已知函数f(x)=log a x+b x-b ,(a>0,b>0且a≠1),