Question

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

विकल्प

• `phi`

• A

• B

• None of these

Answer 1

If A and B are sets, then A ∩ (B – A) is `underlinebb(phi)`.

Explanation:

A ∩ (B – A) = `phi`  ...[∵ x ∈ B – A `\implies` x ∉ A]