+171 Let \(f(x) = \begin{cases} k(x) &\text{if }x>3, \\ x^2-6x+12&\text{if }x\leq3. \end{cases}\)
Find the function k(x) such that f is its own inverse.
Sorry for repost, but Guest got it wrong... (No offence to guest, I greatly appreciate him/her attempt to help)
