Question

If A and B are sets, then A ∩ (B – A) is

• A. $\phi$
• B. A
• C. B
• D. None of these

Answer 1

Answer: (A)

$\phi$

Answer 2

$A \cap ( B - A ) = \phi$, $[ \because x \in B - A \Rightarrow x \notin A ]$.