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If A × B = {(p, q), (p, r), (m, q), (m, r)}, then A and B are
AA = {q, r}, B = {p, m}
BA = {p, q}, B = {m, r}
CA = {p, m}, B = {q, r}
DA = {p, m, q, r}, B = ∅
Answer & Solution
Correct answer: C. A = {p, m}, B = {q, r}
First components: {p, m}; second components: {q, r}. A × B with these does reproduce the given four pairs.
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