Question

For any two sets A and B the set $(A\cup B^c{)}^c\cap (A^c\cup B{)}^c$ is equal to :

• A. $\varphi$
• B. Universal set
• C. $A\cap B$
• D. $(A\cup B{)}^c$

Answer 1

Answer: (A)

Correct answer is (a) $\varphi$