# Function equation, two unknown functions of x

• Aug 23rd 2008, 04:02 AM
espen180
Function equation, two unknown functions of x
Hi there. I didn't know where to post this, so I postet it here.

Two functions $f(x)$ and $g(x)$ are such that

$f(g(x))^{-1}=\frac{f(x)}{2x}$

$g(f(x))=2\cdot f(g(x))$

• Aug 23rd 2008, 04:11 AM
Plato
What are the instructions? What are you to do with problem?
• Aug 23rd 2008, 04:26 AM
espen180
The objective is to find the two functions.