GRE關于交集和并集的數(shù)學資料

　　關于交集和并集的數(shù)學資料

　　新GRE數(shù)學相當于中國高中數(shù)學的水平，對考生來說沒有太大的`問題，不過，考生依然要認真對待，以免造成不必要的失分。下面為大家整理新GRE數(shù)學考點：交集和并集的相關內(nèi)容，希望對大家有所幫助。 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.

　　以上是新GRE數(shù)學備考中關于交集和并集的內(nèi)容，大家在備考的時候不妨分考點來復習，將做錯的題整理出來，考前一個星期內(nèi)集中再過一遍。

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