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Which of these represents a function from set A to set B?

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MCQ_SA

Single Answer MCQ

Q-00051568

A = {1, 2}, B = {1, 2, 3}; {(1, 1), (2, 2), (1, 3)}

A = {1, 2}, B = {1, 2}; {(1, 1), (2, 2)}

A = {1, 2, 3}, B = {1}; {(1, 1), (2, 1), (3, 1), (1, 2)}

A = {a, b}, B = {1}; {(a, 1), (a, 2)}

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