Jika f(x)=x²+4 dan g(y)=2/√y maka (g°f)(t)=...

[tex] f(x)=x^2+4 \\ g(y)= \frac{2}{ \sqrt{y}} \\ \\ (g\circ f)(t)=g(f(t)) \\ \\ =g(t^2+4) \\ = \dfrac{2}{t^2+4} [/tex]