Question

Sejam f (x) = x^2 e g (x) = raiz de x. Determine fog e gof

Answer 1

$\boxed{f(x)= x^{2} }\\ \\ \boxed{g(x)= \sqrt{x} }\\ \\ \boxed{fog(x)= \sqrt{ x^{2} } =x}\\ \\ \boxed{gof(x)=( \sqrt{x} )^2=x} \\ \\ \boxed{fog=gof=x}$