Use f(x) = 1 2
x and f -1(x) = 2x to solve the problems.

f(2) =

f−1(1) =

f−1(f(2)) =

f-1x(fx2) answer = -f  

             f(2)= 2 answer 2f

              f-1x1 answer f-1

you could deduce the conclusion directly using the facts pertaining to the specific situation.

hope this .