নিচের অপশন গুলা দেখুন
A = {1, 2, 3, 4}; B = {(2,3}; C = {5}অতএব, A ∩ B ∩ C = {1, 2, 3, 4} ∩ {2, 3} ∩ {5} = Ø
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