alleryStart learning →A = {1, 2}, B = {2, 3}, C = {1, 3}. Each pair overlaps. What is A ∩ B ∩ C?
A{2}
B{3}
C{1}
D∅
Answer & Solution
Correct answer: D. ∅
Each number occurs in two sets, but none occurs in all three, so the triple intersection is empty.
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