OpenStax, Contemporary Mathematics §1.4 Set Operations with Two Sets · Example 8 · Combinatorics · Sets & logic

Set Operations with Two Sets · Example 8

If $A$ and $B$ are disjoint sets and the cardinality of set $A$ is 37 and the cardinality of set $B$ is 43, find the cardinality of $A$ union $B$ .

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OpenStax, Contemporary Mathematics · §1.4 Set Operations with Two Sets · Example 8

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