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Let A = {1, 2}, B = {2, 3}. Evaluate A × B.

{(2, 1), (3, 1), (2, 3)}
{(1, 2), (1, 3), (2, 3)}
{(1, 2), (1, 3), (2, 2), (2, 3)}
None of these

Correct Answer: {(1, 2), (1, 3), (2, 2), (2, 3)}

Explanation:

A × B = {1, 2} × {2, 3}
= {(1, 2), (1, 3), (2, 2), (2, 3)}.

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