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Let the sets be A = {x : x is a real root of equation (x2 – 5x + 6)·(x2 – 12x + 35) = 0} and B = {1, 2, 3, 4, 5}, then the number of ordered pairs in (A × B) ∩ (B × A) is

Answer» Let the sets be A = {x : x is a real root of equation (x2 – 5x + 6)·(x2 – 12x + 35) = 0} and B = {1, 2, 3, 4, 5}, then the number of ordered pairs in (A × B) ∩ (B × A) is


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