Question

Tentukan nilai x jika diketahu f(x) = x²-5 g(x) = √x-3 dan fog*-1(x) = 25

Answer 1

(fog)(x) = (-3)^2-5

y=(-3)^2-5
=-3
=x

(fog)^-1(x)=
25=
5=
2=\sqrt{x+5}
x= -1