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Suppose g : A → B and f : B → C where A = {1,...

Suppose g : A → B and f : B → C where A = {1, 2, 3, 4} B = {a, b, c} C = {3, 5, 7} and f and g are defined by g = {(1, c), (2, a), (3, b), (4, a)} f = {(a, 5), (b, 7), (c, 3)}.

a. Find f∘g

b. Find f-1

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