Question:
The symmetric difference of A and B is
(a) $(A-B) \cap(B-A)$
(b) $(A-B) \cup(B-A)$
(c) $(A \cup B)-(A \cap B)$
(d) $\{(A \cup B)-A\} \cup\{(A \cup B)-B\}$
Solution:
(b) $(A-B) \cup(B-A)$
The symmetric difference of A and B is given by :-
$(A-B) \cup(B-A)$