jika f(x) = x²+1 dan (g o f) (x) = x/4, maka g(x) = ...

Fungsi Komposisi.

(g o f)(x) = x/4
g(f(x)) = x/4
g(x² + 1) = x/4

Misal x² + 1 = y → x = √(y - 1)
g(y) = √(y - 1) / 4
g(x) = √(x - 1) / 4