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Question
If A = {3, 5, 7, 9, 11} and B = {4, 7, 10}, find: A∪B and n(A∪B)
One Line Answer
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Solution
A ∪ B = {3, 4, 5, 7, 9, 10, 11}
n(A ∪ B) = 7
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Universal Set
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