A) A
B) \[\phi \]
C) B
D) None of these
Correct Answer: B
Solution :
[b] \[\because A\cap \left( A\cup B \right)\text{ }\!\!'\!\!\text{ }=A\cap \left( A'\cap B' \right)\] [By Demorgon's law] \[=\left( A\cap A' \right)\cap B'\] \[=\phi \cap B'=\phi \] Hence, option [b] is correct.You need to login to perform this action.
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