新GRE数学全部考点及解析(16).

　　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：Sum of Arithmetic Progression

　　The sum of n-numbers of an arithmetic progression is given by

　　S=nx*dn(n-1)/2

　　where x is the first number and d is the constant increment.

　　example:

　　sum of first 10 positive odd numbers:10*1+2*10*9/2=10+90=100

　　sum of first 10 multiples of 7 starting at 7: 10*7+7*10*9/2=70+315=385

　　remember:

　　For a descending AP the constant difference is negative.

　　GRE考试数学考点：Sequence of Numbers

　　Sequence of Numbers

　　A sequence is a set of numbers that follow a fixed pattern.The fixed pattern can be expressed by an equation or by a property.

　　Example:

　　A set of consecutive integers: 1,2,3,4,5(Fixed gap)

　　A set of consecutive even numbers:4,6,8,10,12 (Fixed gap)

　　A set of consecutive prime: 2,3,5,7,11(Fixed gap)

　　A set of consecutive power of 2:4,8,16,32,64(Fixed gap)

　　Remember:

　　A sequence can be in ascending or desceding order.

　　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。