Question

Q The set of elements which are either in A or in B is called: *

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Answer 1

Step-by-step explanation:

The symbol ∪ is employed to denote the union of two sets. Thus, the set A ∪ B—read “A union B” or “the union of A and B”—is defined as the set that consists of all elements belonging to either set A or set B (or both).