(1)A∪B ={2,3,4,5,6,8,9,11}
(2)CUA="{1,3,5,7,9,10,11,13}"
(3)CU(A∩B)={1,2,3,5,7,9,10,11,13};
(4) A∪(CUB)={1,2,4,6,7,8,10,13}。
本小題根據(jù)交集、并集、補集的定義求解即可.
(1)A∪B ={2,3,4,5,6,8,9,11}……………………3分
(2)CUA={1,3,5,7,9,10,11,13} ……………………6分
(3)A∩B ={4,6,8} ……………………7分
CU(A∩B)={1,2,3,5,7,9,10,11,13}…………………9分
(4) CUB ="{1,2,7,10,13}" …………………10分
A∪(CUB)={1,2,4,6,7,8,10,13}……………………12分