Jika f(x) = 3x+2 , 9(x)=½x² Tentukan!! A. (fog) (x) B. (gof) (x)

Kelas 10 Matematika
Bab Fungsi Komposisi

a] (fog) (x) = f(1/2 . x²)
(fog) (x) = 3 (1/2 . x²) + 2
(fog) (x) = (3/2) x² + 2

b] (gof) (x) = g (3x + 2)
(gof) (x) = 1/2 . (3x + 2)²
(gof) (x) = 1/2 . (9x² + 12x + 4)
(gof) (x) = (9/2) x² + 6x + 2