BITSAT2014MathematicsSets and RelationsActual
The set (A B) (B A) is equal to]
Options
- A[A (A B)] [B (A B)]
- B(A B) (A B)
- CA (A B)
- 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 )