Diketahui f(x)= x-3 dan g(x) = 2x+4 Maka (g o f)-1(2)=....

Kelas 10 Matematika
Bab Fungsi Komposisi

(gof) (x) = g(x - 3)
(gof) (x) = 2 (x - 3) + 4
(gof) (x) = 2x - 6 + 4
y = 2x - 2
2x = y + 2
x = (y + 2)/2
(gof)^-1 (2) = (2 + 2)/2
(gof)^-1 (2) = 2