MCQ
For two sets A and B, A ∩ (A ∪ B) =
- AA
- BB
- Cϕ
- DNone of these
Solution:
(A ∩ A) ∪ (A ∩ B) = A ∪ (A ∩ B) = A
$\therefore\text{A}\cap\text{B}\subset\text{A}$
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