If a function is defined such that its inverse exists then the domain of the function becomes the range of the inverse function
If a function f(x) is defined on [1,4] → [1,7] and given that f(3) = 5 and its inverse exists then find f(f−1(5)).
The inverse function of f−1(x),if f−1(x) exists is f(x)
If a function f(x) is defined on [1,4] → [1,7] and given that f(3) = 5 and its inverse exists then find f−1 ( f (5) ).