Respuesta :

caylus
Hi,

[tex]f(x)=x+7\\ g(x)= \dfrac{1}{x-13} \\ (fog)(x)=f(g(x))=f(\dfrac{1}{x-13})=\dfrac{1}{x-13}+7\\ [/tex]
Domain of (fog)(x) is R \ {13} =(-oo 13[ U ]13 +oo)