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1) U = {1, 3, 5, 8, 9, 10, 11, 12, 13, 15}, A = {1, 11, 13} B = {8, 5, 10, 11, 15}, find A' ∩ B '. *{ 3, 9, 12}{1 , 3, 5, 9, 12, 15{ 3, 5, 9, 12, 15 } |
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