数列的求和是一节综合性内容,在高考卷中有小题也有大题,其中大题有简单的数列求和题,也有复杂的数列和不等式、数列和函数、数列和方程等的综合题。数列的通项和求和是高考对数列考查的主要着力点之一。在对数列求和时,若是等差数列或等比数列就按公式计算,若不是就要考虑其他方法计算,常用的方法有以下几种:一倒序相加法将一个数列倒过来排列与原数列逐项相加,主要用于倒 Summation of the sequence is a comprehensive content, there are questions in the college entrance examination also have big problems, the big problem with a simple series of summation problems, but also complex series and inequalities, sequences and functions, sequences and equations, such as a comprehensive question. The generalization and summation of the series is one of the main focuses of the college entrance examination on the series. In the summation of the sequence, if the arithmetic sequence or equal sequence is calculated according to the formula, if not, we must consider other methods of calculation, the commonly used methods are the following: a reverse order addition will be a sequence inverted and arranged with the original The numbers are added one by one, mainly for pouring