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正项级数比值判别法的阐述
级数理论是数学分析的重要组成部分，而正项级数又是级数理论中中重要的组成部分，级数的收敛性更是级数理论的核心问题，要想解决正项级数的求和问题必须先解决正项级数收敛性判断，正项级数收敛性判断的方法虽然较多，但使用起来仍有一定的技巧，归纳总结正项级数收敛性判断的一些典型方法，比较这些方法的不同特点，总结出一些典型的正项级数，根据不同的题目特点分析、判断选择适宜的方法进行判断，能够最大限度的节约时间，提高效率，特别是一些典型问题，运用典型方法，才能事半功倍。针对正项级数比值判别法的几种推广，提倡学数学不仅要领悟其思想，更要注意其应用。
关键词：正项级数 判别法 收敛性
全部啊，第一行的标题也要
第1个回答 2010-06-07
Ratio Test of Positive Series elaboration
Series theory is an important part of mathematical analysis, while the positive series is an important series theory in part, series convergence theory is the core series, in order to solve the positive series Sum problem must be resolved to judge the convergence of positive series, the convergence of positive series although there were more ways to judge, but there is still some skill to use, Convergence of Positive Series summarized some of the typical method of judging, compare the different characteristics of these methods, summarize some of the typical series of positive terms, according to the characteristics of the different topics, select the appropriate method to judge to judge, to maximize the time savings and improve efficiency, especially in some typical problems, the use of typical method to more with less. For positive series Ratio Test of several promotion, promotion of mathematics not only to comprehend their thoughts, but to pay attention to their application
Series theory is an important part of mathematical analysis, while the positive series is an important series theory in part, series convergence theory is the core series, in order to solve the positive series Sum problem must be resolved to judge the convergence of positive series, the convergence of positive series although there were more ways to judge, but there is still some skill to use, Convergence of Positive Series summarized some of the typical method of judging, compare the different characteristics of these methods, summarize some of the typical series of positive terms, according to the characteristics of the different topics, select the appropriate method to judge to judge, to maximize the time savings and improve efficiency, especially in some typical problems, the use of typical method to more with less. For positive series Ratio Test of several promotion, promotion of mathematics not only to comprehend their thoughts, but to pay attention to their application
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