Jika f (x) = x2 + 1 g (x) = x + 6 Tentukan (f . g) (x) (f o g) (x) Invers dari g (x)

Langsung aja y

(f.g)(x) = f(x) × g(x)

= (x²+1) × (x+6)
= x³ + 6x² + x + 6

(fog)(x) = f{g(x)}

= g(x)² + 1
= (x+6)² + 1
= x² + 12x + 36 + 1
= x² + 12x + 37

g(x) = x + 6
y = x + 6
x = y - 6

g`¹(x) = x - 6

semoga berguna +_+