tentukan(fog)(x)dan (gof)(x)jika diketahui:f(x)=3x+5dan g(x)=2x-7

Kelas 10 Matematika
Bab Fungsi Komposisi

1] (fog) (x) = f (2x - 7)
(fog) (x) = 3 (2x - 7) + 5
(fog) (x) = 6x - 16

2] (gof) (x) = g (3x + 5)
(gof) (x) = 2 (3x + 5) - 7
(gof) (x) = 6x + 10 - 7
(gof) (x) = 6x + 3