IF A U B = A U C AND A ∩ B = A ∩ C, THEN
A. B = C only when A Í C
B. B = C only when A ? B
C. B = C
D. none of these
Answer:B
IF A U B = A U C AND A ∩ B = A ∩ C, THEN
A. B = C only when A Í C B. B = C only when A ? B C. B = C D. none of these