{x|x ∈ A ∨ x ∈ B} = _____?
- A ∪ B
- A ∆ B
- A ∩ B
- None of these
Explanation
The expression {x|x ∈ A ∨ x ∈ B} represents the set of elements that are in A or in B or in both.
This is the definition of the union of two sets, denoted as A ∪ B.
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