Given set L 2,4,6,8, 10, 12), M (2,4,5,8, 12), and N (3,4,5,6), find MUN

The cardinality of the set A is often notated as | A| or n(A). Example 12. Let A = {1, 2, 3, 4, 5, 6} ... The cardinality of A ⋃ B is 7, since A ⋃ B = { 1, 2, 3, 4, 5, 6, 8}, which contains 7 elements.

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