新GRE数学全部考点及解析(14).

　　新GRE数学考试要求的是中学的数学知识，考生们对于新GRE数学上面来说还是比较有把握，不过说到具体的GRE数学考点要求就不一定这么清楚。下面就为大家介绍新GRE数学考点及这些GRE数学考点解析，帮助考生们系统的复习一遍新GRE数学，梳理整合新GRE数学考试所需要的知识。

　　GRE考试数学考点之并集和交集

　　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.

　　Example:

　　Union of {2,3,5} and {1,3,4} is the set {1,2,3,4,5}.

　　Union of {1,2,1} and {1,2} is the set {1,2,1}.

　　Remember:

　　The common members do not repeat in the union.

　　以上就是新GRE数学考点及GRE数学考点解析的介绍，希望这些知识点的介绍可以帮助大家复习新GRE数学，为大家复习新GRE数学提供条件。希望考生们认真复习新GRE数学考试，能够取得自己理想的成绩。澳际也会不断的为大家分享更多有助于考生们复习考试的新GRE考试材料及技巧。