Question

I cant seem to get one of these answers when i work it out. please help​

Answer 1

first option

Explanation:

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

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

=
`(2)/((1)/(2x)+3 )` ( multiply numerator/ denominator by 2x to clear the fraction

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

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