Diketahui (gof)(x) = 3x^2+12x-11 dan g(x-1)(x) = 3x+1, maka f(x) adalah

◾ Materi : Fungsi
◾ Sub materi : Fungsi Komposisi
◾ Mapel : Matematika

Jawab :
(gof)(x) = 3x²+12x-11
g(x-1) =3x+1
misalkan, u = x-1
x = u+1
g(u) = (u+1)-1
g(u) = u
g(x) = x

(gof)(x) = 3x²+12x-11
g(f(x)) = 3x²+12x-11
f(x) = 3x²+12x-11

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-vin