question_answer

Let A  and B be two sets then \[(A\cup B{)}'\cup ({A}'\cap B)\] is equal to

A) \[{A}'\]

B) A

C) \[{B}'\]

D) None of these

Correct Answer: A

Solution :

 From Venn-Euler's Diagram, \[\therefore \] \[(A\cup B{)}'\cup ({A}'\cap B)={A}'\].