设全集U=﹛1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16﹜,A=﹛x|x是被3整除余2的整数﹜,

题目

设全集U=﹛1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16﹜,A=﹛x|x是被3整除余2的整数﹜,
B=﹛x|x是被4整除的数﹜求A,B,A∪B,A∩B,CuB.

答案

A={5,8,11,14}B={4,8,12,16}AUB={4,5,8,11,12,14,16}A交B={8}CuB={1,2,3,4,6,7,9,10,12,13,15,16,}