f(x) = 1+x g(x) = x-3/x+3 maka (g o f) (2x)

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

(gof)(x)=(g(f(x)))
(gof)(x)=(g(1+x))
(gof)(x)={(1+x)-3}/{(1+x)+3}
(gof)(x)=(x-2)/(x+4)

yang ditanya adalah..
(gof)(2x)=?

sudah diketahui bahwa :
(gof)(x)=(x-2)/(x+4)
jadi,
(gof)(2x)=(2x-2)/(2x+4)
(gof)(2x)=2(x-1)/2(x+2)
(gof)(2x)=(x-1)/(x+2)

smoga membantush_!