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Let f: {1,2,3,4,5}->(1,2,3,4,5 } is suc...

Let `f: {1,2,3,4,5}->(1,2,3,4,5 }` is such that `f(x)` is a one-one function satisfying following condition `f(x)=x + 1` if and only if x is even `(i.e. f(3)!=4, f(4) = 5` etc). Then `f^-1(2)` can be-

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