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BITSAT2014MathematicsSets and RelationsActual

The set (A B) (B A) is equal to]

Options

  1. A[A (A B)] [B (A B)]
  2. B(A B) (A B)
  3. CA (A B)
  4. DA B A B

Correct answer

B. (A B) (A B)

Step-by-step solution

Given set can be written as (A-B) (B-A)=(A B)-(A B) (By definition of symmetric difference) Hence, ( A B ) ( B A )=( A B ) ( A B )

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