jika f(x)=x+6 dan g(x)=x-5x cari a agar (fog) (a) =0

Kelas 10 Matematika
Bab Fungsi Komposisi

(fog) (x) = f(x - 5x)
(fog) (x) = f(-4x)
(fog) (x) = -4x + 6

(fog) (a) = 0
-4x + 6 = 0
-4x = -6
x = -6/-4
x = 3/2