高二數(shù)學(xué)等差數(shù)及列其性質(zhì)

等差數(shù)列及其性質(zhì)期末復(fù)習(xí)

Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.1、定義：2、通項公式：推廣：一、知識要點；Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.5.等差數(shù)列性質(zhì)：（1）（2）若則（3）若數(shù)列是等差數(shù)列，則也是等差數(shù)列（4）等差數(shù)列{an}的任意等距離的項構(gòu)成的數(shù)列仍為等差數(shù)列Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.6.等差數(shù)列判定方法：（1）定義法：（2）遞推公式法：（3）看通項法：（4）看前n項和法：Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.1、知三求二：二、主要題型分析:Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.2、應(yīng)用等差數(shù)列的定義進行解題：Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.3、應(yīng)用等差數(shù)列的性質(zhì)解題：Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.5.已知是兩個等差數(shù)列，前項和分別是和且求Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile.Copyright2004-2011AsposePtyLtd.4、其他的題型：Evaluationonl