依题意:∵A∩B={2,3} ∴{2}∈集合A且{3}∈集合B ∴在集合A中,|a+1|=2 ∴a=-3或a=1 ①当a=-3时,集合B={-5,3,2},满足A∩B={2,3} ∴A∪B={-5,2,3,5} ②当a=1时,集合B={3,3,0},不符合集合的性质要求,所以a=1不合,舍去 ...
设集合A=﹛|a+1|,3,5﹜,集合B=﹛2a+1,a+2a,a+2a-1﹜,当A∩B=﹛2,3﹜,求A∪B
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