jika f(x) = (x - 2)^2 - 1 dan g(x) = 2√x+1 maka (fog)(9)/(fog)(16) = Di bantu yah kaka

(fog)(9) = ((2(akar9)+1)-2)² -1
(fog)(9) = (6+1-2)² -1
(fog)(9) = 24

(fog)(16) = ((2(akar16) +1)-2)² -1
(fog)(16) = (8+1-2)² -1
(fog)(16) = 48

maka
(fog)(9)/(fog)(6) = 24/48 = 1/2 = 0,5