新GRE数学交集和并集要点指导.

　　为了方便广大考生更好的复习，小编为大家综合整理了新GRE数学的要点指导：交集和并集，以供各位考生考试复习参考,希望对考生复习GRE数学题有所帮助。愿大家都能取得GRE考试好成绩。

　　Intersection of Sets

　　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.

　　以上就是新GRE数学中交集和并集的考试要点，希望本文能够对广大考生做GRE数学题有所帮助，祝愿大家能够取得优异的GRE考试成绩。