Question

已知集合A=﹛1,2,3,4,5﹜,A∩B=﹛1,3,5﹜,A∪B=﹛0,1,2,3,4,5,6﹜,求集合B

Answer 1

从A=﹛1,2,3,4,5﹜,A∩B=﹛1,3,5﹜可知 B里有 1 3 5

又因为A∪B=﹛0,1,2,3,4,5,6﹜

所以B={0,1,3,5,6}