The answers to exercises marked [BB] can he found in the Back of the Book. [BB] Let A = {1, 2, 3, 4, 5). Find the inverse of each of the following functions ƒ: A → A.
(a) ƒ = {(1, 2), (2, 3), (3, 4), (4, 5), (5, 1)}
(b) ƒ = {(1, 2), (2, 4), (3, 3), (4,1), (5, 5)}
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