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प्रश्न
If A = {2, 4, 6, 8} and B = {3, 6, 9, 12}, find: (A ∩ B) and n(A ∩ B)
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उत्तर
(A ∩ B) = {2, 4, 8}
n( A ∩ B) = 3
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