+0  
 
+1
46
1
avatar+51 

Suppose that $f$ is an invertible function from $(-\infty,\infty)$ to $(-\infty,\infty)$. If $f(f(x))=x$, find $f(x)-f^{-1}(x)$.

 Jul 31, 2020
 #1
avatar
0

f(x)-f^{-1}(x) = 2x

 Aug 14, 2020

16 Online Users