Question

If f(x) = 2/x+3 and g(x) = 1/x then (g ° f)(x) is equal to

Answer 1

I am going to assume you meant to type
f(x) = 2/(x+3)

(g ° f)(x)
= g(f(x))
= g( 2/(x+3))
= 1/( 2/(x+3))
= 1(x+3)/2
= (x+3)/2

If you meant it the way you typed it, follow the same steps and make the appropriate changes.