Let S = {a, b, c} and T = {1, 2, 3}. Find F–1 of the following functions F from S to T, if it exists.

F = {(a, 2), (b, 1), (c, 1)}


It is given that S = {a, b, c} and T = {1, 2, 3}

F: S T is defined as:


F = {(a, 2), (b, 1), (c, 1)}


= > F(b) = 1, F(c) = 1, F is not one-one.


Therefore, F is not invertible


F-1 does not exists.


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