Find the natural domain of the function gf.
f(x)= √x g(x)= x-5
Thanks.
But I would have interpreted "gf" as the product, $\displaystyle (x- 5)\sqrt{x}$ which also has natural domain $\displaystyle x\ge 0$. The composition the other way, $\displaystyle f\circ g(x)= \sqrt{x- 5}$, on the other hand, has natural domain $\displaystyle x\ge 5$.