Question

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

Any help is appreciated :)

Answer 1

Answer:

1st option

Step-by-step explanation:

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

f($\frac{1}{2x}$ )

= $\frac{2}{\frac{1}{2x}+3 }$

= $\frac{2}{\frac{1+6x}{2x} }$

= $\frac{4x}{1+6x}$