dik f(x) = 3x + 2 dan g(x) = 6 x²-1,maka (fog)(6)?

Kelas 10 Matematika
Bab Fungsi Komposisi

(fog) (x) = f(g(x))
(fog) (x) = f(6x² - 1)
(fog) (x) = 3(6x² - 1) + 2
(fog) (x) = 18x² - 3 + 2
(fog) (x) = 18x² - 1
(fog) (6) = 18 . 6² - 1
(fog) (6) = 648 - 1
(fog) (6) = 647