MCQ
Let A and B be two sets in the same universal set. Then, A - B =
  • A
    $\text{A}\cap\text{B}$
  • B
    $\text{A}'\cap\text{B}$
  • C
    $\text{A}\cap\text{B}'$
  • D
    None of these.

Answer

  1. $\text{A}\cap\text{B}'.$

Solution:

A - B belongs to those elements of A that do not belong to B.

$\therefore\text{A} - \text{B = A}\cap\text{B}'.$

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