Tolong bsok dikumpul #plis ya tolong pake cara

Fungsi Komposisi

gof(x)
= g(f(x))
g((2x)/(3x-1))

= (2x / (3x-1)) - 1
= (2x-3x+1) / (3x - 1)
y = (-x + 1)/(3x-1)
3xy - y = -x + 1
3xy + x = y + 1
x(3y + 1) = y + 1
x = (y + 1)/(3y + 1)

(gof)^-1(x) = (x+1)/(3x+1)
dan x ≠ -1/3

A