小学、初中、高中各种试卷真题知识归纳文案合同PPT等免费下载www.doc985.com第05讲数列求和目录01考情透视·目标导航..........................................................................................................................202知识导图·思维引航..........................................................................................................................303考点突破·题型探究..........................................................................................................................4知识点1：数列求和常用方法.............................................................................................................4解题方法总结........................................................................................................................................5题型一：通项分析法............................................................................................................................9题型二：公式法..................................................................................................................................11题型三：错位相减法..........................................................................................................................13题型四：分组求和法..........................................................................................................................18题型五：裂项相消法之等差型..........................................................................................................20题型六：裂项相消法之根式型..........................................................................................................25题型七：裂项相消法之指数型..........................................................................................................27题型八：裂项相消法之三角型..........................................................................................................32题型九：倒序相加法..........................................................................................................................36题型十：分段数列求和......................................................................................................................38题型十一：并项求和法之an+1+(−1)nan=kn+b型...........................................................................42题型十二：并项求和法之an=(−1)nf(n)型.....................................................................................45题型十三：先放缩后裂项求和..........................................................................................................4804真题练习·命题洞见........................................................................................................................5305课本典例·高考素材........................................................................................................................5706易错分析·答题模板........................................................................................................................60易错点：用错位相减法求和时项数处理不恰当出错......................................................................60答题模板：错位相减法求前n项和..................................................................................................61小学、初中、高中各种试卷真题知识归纳文案合同PPT等免费下载www.doc985.com考点要求考题统计考...