Question: Let = {1,5,8,9} and = {2,4}. Prove that is an onto function if it is stated that = {(1,2), (5,4), (8,2), (9,4)}.

Let = {1,5,8,9} and = {2,4}. Prove that is an onto function if it is stated that = {(1,2), (5,4), (8,2), (9,4)}.

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