Question

Given `f(x) = x^2 + 1` and `g(x) = (2x) (1/2)` how do you find f(g(x))?

Answer 1

`f(g(x))=x^2+1`

Explanation:

If `g(x)=(2x)(1/2)`
then `g(x)=x`

and therefore
`f(g(x))=f(x)`
and we are told `f(x)=x^2+1`