alleryStart learning →A, B ⊆ U and all complements use U. Which expression equals (A ∩ B)′?
AA′ ∩ B′
BA ∩ B
CA ∪ B
DA′ ∪ B′
Answer & Solution
Correct answer: D. A′ ∪ B′
An element outside the intersection is outside at least one of the sets, so it lies in A's complement or B's complement.
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