Diketahui fungsi f(x) = 3/x dan g(x) = x^2 – 4 tentukan fog dan gof

Dik : f(x) = 3/x
g(x) = x^2 – 4
fog(x) = f (g(x))
= f (x^2 -4)
= 3/x^2-4
gof(x) = g(f(x))
= g(3/x)
= 1( (3/x)^2)-4
= 9/x^2 -4