f(×)=x2+1 g(×)=×-1 cari fog dan gof

f(x)=x²+1
g(x)=x-1

fog=(x-1)²+1=x²-2x+1+1=x²-2x+2
gof=x²+1-1=x²

jadikan yg terbaik ya

Bab Fungsi Komposisi
Matematika SMA Kelas X

1] (fog) (x) = f(x - 1)
(fog) (x) = (x - 1)² + 1
(fog) (x) = x² - 2x + 1 + 1
(fog) (x) = x² - 2x + 2

2] (gof) (x) = g(x² + 1)
(gof) (x) = x² + 1 - 1
(gof) (x) = x²