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1. |
For any two sets A and B, prove the following: A ∩ (A’ ∪ B) = A ∩ B |
Answer» Expanding (A ∩ A’) ∪ (A∩ B) (A ∩ A’) =ϕ ⇒ ϕ ∪ (A∩ B) (A ∪ ϕ =A) ⇒ (A∩ B) |
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