Math Chapter Wise Sets, Relations And Functions English MCQ UP PCS (Pre) 2009 Q.For three sets A, B and C the correct statement is AA∪B=A∪C⇒B=C BA∩B=A∩C⇒B=C CA∪B=A∪C and A∩B=A∩C ⇒B=C DA–B=A–C⇒B=C Show answer Correct answer: A∪B=A∪C and A∩B=A∩C ⇒B=C