The values of a function f(x) are given in the table above.
If f^{-1} exists, then what is f^{-1}(f^{-1}(f^{-1}(1)))?
f-1 does exist
f^{-1}(f^{-1}(f^{-1}(1))) =
( f-1 ° f -1 ° f-1 ) (1) =
( f-1 ° f -1) (2) =
f-1 ( 5) =
3
