C-01-Q047mediumsingle_mcqকোনটি বিনিময়বিধি?aA∪B=B∪AA \cup B = B \cup AA∪B=B∪Ab(A∪B)∪C=A∪(B∪C)(A \cup B) \cup C = A \cup (B \cup C)(A∪B)∪C=A∪(B∪C)cA∩(B∪C)=(A∩B)∪(A∩C)A \cap (B \cup C) = (A \cap B) \cup (A \cap C)A∩(B∪C)=(A∩B)∪(A∩d(A∪B)′=A′∩B′(A \cup B)' = A' \cap B'(A∪B)′=A′∩B