Question

Find (fog)(x) when f(x)=2/x+3 and g(x)=1/2x

Any help is appreciated :)

Answer 1

1st option

Explanation:

To find (f ￮ g)(x) substitute g(x) into f(x) , that is

f(
`(1)/(2x)` )

=
`(2)/((1)/(2x)+3 )`

=
`(2)/((1+6x)/(2x) )`

=
`(4x)/(1+6x)`