Suppose that is f a function and f^{-1} is the inverse of f. If f(3) = 4, f(5) = 1, and f(2) = 5, evaluate f(5)+f−1(4).
Because f−1(f(x))=x, f−1(f(3))=4, simplifying to f−1(4)=3.
Thus, f(5)+f−1(4)=1+3=4.
The answer is 4.
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