The values of a function f(x) are given in the table below.
If f−1 exists, then what is f−1(f−1(f−1(1)))?
The answer is 5.
That's incorrect.
Taken in pieces we have
f-1 (1) = 2
f-1 (2) = 5
f-1 (5) = 3
+184 
