已知全集U={0,1,2,3,4,5,6,7,8},集合A={0,1,2,3},集合B={2,3,4,5,6},求:
问题描述:
已知全集U={0,1,2,3,4,5,6,7,8},集合A={0,1,2,3},集合B={2,3,4,5,6},求:
(1)A∪B,A∩B; (2)CuA,CuB.(详细过程!)
答
挺好理解的啊,(1)A∪B={0,1,2,3,4,5,6},包含所有A,B中的元素的集合.
A∩B={2,3},A,B都有的元素的集合.
(2)CuA等于{4,5,6,7,8},CuB等于{0,1,7,8},分别表示去除U中包含的A,B中元素后的集合.