UNION \(A \cup B\), \(A\) or \(B\), elements which are in \(A\), in \(B\), or in both. |
Consider the set \(A = \{4, 5, 6, 7, 8\}\) and \(B = \{7, 8, 9\}\), all the elements in \(A\) or in \(B\) together is \(\{4, 5, 6, 7, 8, 9\}\). \(\therefore A \cup B = \{4, 5, 6, 7, 8, 9\}\) |
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