

InterviewSolution
Saved Bookmarks
1. |
The set (A ∪ B ∪ C) ∩ (A ∩ B′ ∩ C′)′ ∩ C′ is equal to(A) B ∩ C′ (B) A ∩ C (C) B ∪ C′ (D) A ∩ C′ |
Answer» The correct choice is (A). Since (A ∪ B ∪ C) ∩ (A ∩ B′ ∩ C′)′ ∩ C′ = (A ∪ (B ∪ C)) ∩ (A′ ∪ (B ∪ C)) ∩ C′ = (A ∩ A′) ∪ (B ∪ C) ∩ C′ = φ ∪ (B ∪ C) ∩ C′ = B ∩ C′ ∪ φ = B ∩ C′ |
|