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1、一、函数、极限、连续重要概念公式定理(一)数列极限的定义与收敛数列的性质数列极限的定义:给定数列,如果存在常数,对任给,存在正整数,使当时,恒有,则称是数列的当趋于无穷时的极限,或称数列收敛于,记为.若的极限不存在,则称数列发散.收敛数列的性质:(1)唯一性:若数列收敛,即,则极限是唯一的.(2)有界性:若,则数列有界,即存在,使得对均有.(3)局部保号性:设,且,则存在正整数,当时,有.(4)若数列收敛于,则它的任何子列也收敛于极限.(二)函数极限的定义名称表达式任给存在当…时恒有当时,以为极限当时,以为极限当时,以为右
2、极限当时,以为左极限当时,以为极限当时,以为极限(三)函数极限存在判别法(了解记忆)1.海涅定理:对任意一串,都有.2.充要条件:(1);(2).strengthenthesenseofresponsibility,worktosolvethelackofdecentoccupationexplainaway,conductproblems.Toestablishtheoverallconcept,eliminatedepartmentalism.Strictassessmentandaccountability,toso
3、lvethespiritualslack,nianqingpazhong,statusquo,andotherissues.ToestablishandperfectthemuddlealongBureaustaffconductworkregulations,standardizethebehaviorofpersonnel.2.Tostrengthentheresponsibilitysystem.Oneisthein-depthstudyandimplementthe"HunanprovincialPartyandg
4、overnmentleadingcadresInterimProvisionsontheworksafetyofapairof>(HunanOfficeissued2013No.5),"Hunanprovincesafetysupervisionandmanagementresponsibilitiesoftheprovisionsontheproduction(HunanZhengbanmade2013No.4)Andresolutelyimplementthesafetyproductionofthepartywith
5、responsibility,apairofresponsibility."Twoisissuedsafetyproductionadministrationandinspectiontopromotetheresponsibilitiesbearsafetyproductionsupervisiondepartmentsstrictlyandeffectivelyassumedresponsibility.Thethreeistoestablishriskselfcorrectionselfreportingsystem
6、forsafetyinproductionenterprises,promotetheenterprisestoimplementthemainresponsibilityforproductionsafetyisintroduced.Fourstrengthenthecountysafetyproductionsupervisionabilityconstructionwork,promotesafeproductionresponsibilitytothegrassroots.3,strictaccountabilit
7、yandtargetmanagement.Adheretothe"whoisincharge,whoisresponsibleforthepipeindustrymustbesafe,GuanShengproductionandoperationmustbesafe,pipebusinessmustcontrolsecurity"principle,theimplementationofsafetyTheproductionof"cure."stagnationsupervisionandleadershiprespons
8、iblesystem.Thesafetyproductionofkeytowns,keyenterprisesandkeyproblems,bythetownshipgovernmentandtheDepartmentresponsibleforthestagnationledthelumpsum,to