Question

Let A and B be two sets then $(A\cup B{)}^{\prime }\cap (A^{\prime }\cap B)$ is equal to

• A. A'
• B. A
• C. B'
• D. None of these

Answer 1

Answer: (A)

From Venn-Euler’s Diagram.
$\therefore (\mathrm{AB}){}_{}^{}{}_{}^{\prime }\cup (\mathrm{A}{}^{\prime }\cap \mathrm{B})=\mathrm{A}{}^{\prime }$