diketahui (fog) (x) = x² + 4 dan g(x) = x + 3 tentukan f(x) mohon bantuannya

jawab

g(x)= x + 3
g⁻¹(x) = x - 3

fog(x)= x² + 4
f(x) = (fog)o g⁻¹ (x)
f(x) = (x - 3)² + 4
f(x)= x² - 6x + 9 + 4
f(x)= x² - 6x + 13

(f 0 g)(x) = x² + 4

f (g(x) = x² + 4

f ( x + 3 ) = x² + 4

                y = x + 3 , y - 3 = x

f (y) = (y -3)² + 4

f(y) = y² -6y + 9 + 4

f(x) = x² -6x +13