Dik f(x)=3x-1. g(x)=√x dan h(x)=x kuadrat + 2 Tentukan ; (fog)(4) dan (foh)(-1)

(fog)(4) = f (g(4)) = 3(akar x) - 1
= 3 (akar 4) - 1
= 3 (2) - 1
= 6 - 1
= 5

(foh)(-1) = f (h(-1)) = 3 (x^2 + 2) - 1
= 3 ( (-1)^2 + 2 ) - 1
= 3 (3) - 1
= 9 - 1
= 8

F o g (4) = 3 akar x - 1 = 5 F o h (-1) = 3x - 1 = -4