Math Chapter Wise Sets, Relations And Functions English MCQ Bihar (TRE 2.0)-2023 Q.If A and B are two sets with A∩ ∩ ∩B = φ, then An (A∪B) = n(A)+ n(B) Bn (A∩B) = n(A)+ n(B) Cn (A∪B)+ n(A) = n(B) DMore than one of the above ENone of the above Show answer Correct answer: n (A∪B) = n(A)+ n(B)