jika f(x) = 5x + 2 dan g(x) = ¼x², nilai (fog)(4)?

f(x) = 5x + 2
g(x) = ¼x²

(fog)(x) = f(g(x))
= 5(¼x²) + 2
= 5/4 x² + 2

maka, nilai (fog)(4)
= 5/4 (4)² + 2
= 5/4 (16) + 2
= 20 +2 = 22

semoga membantu
-vin.