If g(f(x))=2x+1 and f(x)=1/4x-1,then g(x)=

题目

If g(f(x))=2x+1 and f(x)=1/4x-1,then g(x)=

答案

楼主是外国人不懂中文?我也用英文答吧Let1/(4x-1)=k then x=(1-k)/4ksubstituting equationg（k）=(1-k)/2k +1=（1+k）/2kSo g（x）=（1+x）/2xIf you have question ,you can persist me !...