C-01-Q079mediumsingle_mcqA,B,CA, B, CA,B,C সান্ত সেট হলে n(A∪B∪C)=?n(A \cup B \cup C) = ?n(A∪B∪C)=?an(A)+n(B)+n(C)n(A) + n(B) + n(C)n(A)+n(B)+n(C)bn(A)+n(B)+n(C)−n(A∩B)−n(B∩C)−n(C∩A)+n(A∩B∩C)n(A) + n(B) + n(C) - n(A \cap B) - n(B \cap C) - n(C \cap A) + n(A \cap B \cap C)n(A)+n(B)+n(C)−n(A∩B)−n(B∩C)−n(C∩A)+n(A∩B∩C)cn(A)⋅n(B)⋅n(C)n(A) \cdot n(B) \cdot n(C)n(A)⋅n(B)⋅n(C)dn(A∩B∩C)n(A \cap B \cap C)n(A∩B∩C)