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

Mapel : Matematika

Kelas : 10

Bab : Fungsi Komposisi

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→ 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