Mohon bantuannya ಥ_ಥ
Jawab:
komposisi fungsi
f(x) = x² + 3x +2
g(x) = x – 9
h(x) = 2x – 1
a. fog(x) =
= f{g(x)}
= f{x-9)
= (x- 9)² + 3(x – 9) + 2
= x² -18x + 81 + 3x- 27 + 2
= x² – 15x + 56
b. hof(x) =
= h {f(x)}
= h{x² + 3x +2}
= 2(x² + 3x + 2)
= 2x² + 6x + 4