C-01-Q049mediumsingle_mcqকোনটি বন্টনবিধি?aA∪A=AA \cup A = AA∪A=AbA∩(B∪C)=(A∩B)∪(A∩C)A \cap (B \cup C) = (A \cap B) \cup (A \cap C)A∩(B∪C)=(A∩B)∪(A∩cA∪B=B∪AA \cup B = B \cup AA∪B=B∪AdA⊂A∪BA \subset A \cup BA⊂A∪B