Which one of the following is $(A-B) ∪ (B-A)$?1$(A∪B) ∪(A-B)$2$(A∪B) ∪(A∩B)$3$(A∪B) -(A∩B)$4$(A-B)∩ (B-A)$Answer & explanation+Correct answer: option 3 ⇒ $(A-B)∪ (B-A)=(A∪B) -(A∩B)$
