新GRE数学相当于中国高中数学的水平，对考生来说没有太大的问题，不过，考生依然要认真对待，以免造成不必要的失分。下面小编为大家整理GRE数学考点交集和并集的例题解析的相关内容，希望对大家有所帮助.
Intersection of two sets is another set with only the members that are in both sets. If the two sets do not share any common member， the intersection is the empty set with no member.
Example：
Intersection of {1，2，3} and {2，3，5} is the set {2，3}。
Intersection of the set with all primes and the set with all even numbers is the set {2} since only 2 is both even and prime.
Intersection of {1，2，3} and {4，5，6} is the empty set {}。
Remember：
Intersection contains only the common members.
Two sets are disjoint if they have no member in common， that is they have an empty intersection.
Union of Sets
Union of two sets is another set with all the members from both sets.
大家在备考的时候不妨分考点来复习，将做错的题整理出来，考前一个星期内集中再过一遍。
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