设集合A={X|X>0},B={X|X<-1或X≥2}}则A∪B=多少
题目
设集合A={X|X>0},B={X|X<-1或X≥2}}则A∪B=多少
答案
A={X|X>0},B={X|X<-1或X≥2}
A∪B={X|X<-1或X>0}
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