If 
, show that fof(x) = x, for all 
. What is the inverse of f?
It is given that 
Therefore, fof(x) = x, for all x ≠ 
= > fof = 1
Therefore, the given function f is invertible and the inverse of f itself.
4
If , show that fof(x) = x, for all . What is the inverse of f?
It is given that
Therefore, fof(x) = x, for all x ≠
= > fof = 1
Therefore, the given function f is invertible and the inverse of f itself.