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If two sets are disjoint, then what region represents the union of their complements in a Venn diagram?

1 Answer

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Let A and B be disjoint, the complement of A is everything not in A and the complement of B is everything not in B. The union of the two is therefore everything that is not in A or everything that is not in B, so it must be the entire universe.
User Kris Braun
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