Di ketahui f(×)=×+1 dan g(×)=×2-5×+1= Maka gof (×)=

Mapel : Matematika

Kelas : 10

Bab : Fungsi Komposisi

----------------------------------

→ f(x) = x + 1

→ g(x) = x² - 5x + 1

Nilai (g o f) (x) :

(g o f) (x) = g(x + 1)

(g o f) (x) = (x + 1)² - 5(x + 1) + 1

(g o f) (x) = x² + 2x + 1 - 5x - 5 + 1

(g o f) (x) = x² - 3x - 3