Jawabanmu

2014-06-17T08:33:17+07:00
F(x) = x+2014 / x-1
(f o f)(x) = (x+2014/x-1) + 2014 / (x+2014/x-1) - 1
= 2015x/(x-1) / 2015/(x-1)
= 2015x/(x-1) . (x-1)/2015
= x
(f o f o f)(x) =  x+2014 / (x-1)
(f o f o f o f)(x) =  x lagi
(f o f o f o f o f)(x) =  x+2014 / (x-1) = f(x)