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1、2004考研数学热点问答之线性代数篇2004graduatemathematicshotquizlinearalgebrachapter1.,Ifeellinearalgebraisstillrelativelydifficult,intheendthismonthshouldbehowtoreviewit?Answer:Thisisacourseofthemostabstract,betweenthiscourseeachalbumiscloselylinked,linearalgebra,thisplaceishardtosay,whileothercoursesinhig
2、hermathematicscanbeaseparatechapterproposition,solinearalgebrageneralquestionsandpreviousknowledgeclosely,ifthebasiccontentifthisisnotenoughskilledpartofthistime,thistimeIwanttohavealittletimetotense,youretoolatetoreviewsystem,graspsomekeyproblemsbydoing,lookatthoseimportanttheorems,importan
3、tconclusionsarenotsure・2.howtocultivatethesenseofwholenessinthereviewoflinearalgebra?Answer:thelinksbetweenthechaptersofalinearalgebraareverycloselyrelated.Whatisthecenterofthething,thedeterminant,thematrix,andthevector?Thispartisnotdeterminantwhatyouknowisthemaindeterminantdeterminantofthem
4、eaning,natureandsoon,isthekeydeterminant,thedeterminantoftheRparty,thisproblemisanimportantformula.AmatrixAmultipliedbytheadjointmatrixofAisequaltothedeterminantofAmultipliedbyaunitmatrix,andthisformulaisthewayofexpansionofourdeterminantRsquarematrix・Eachchapterhaslinks,sowhenyoureview,yoush
5、ouldfocusonthechapters・Determinanthasnothing,thesecondchaptermatrix,thematrixisabasis,relatedtotheentirelinegeneration,sotheoperationofthematrixisveryimportant,especiallydonotdoillegalcomputing・Becauseweareusedtotheoperationofthenumber,indoingmatrixoperation,easilyaffectedbythenumber,sothisp
6、laceweshouldmakeitclear.Averyimportantelementinmatrixoperationsiselementarytransformation.We'resolvingequations,andwe'relookingforthingsthatfeaturevectorscan，tbeseparatedfrom・Thisisthefocusofourmatrixsection・Thispartisthelogicalvectorisverystrong,wealsofeelmoredifficult,thispartofthelogicalr
7、easoningisverystrong,wemustbeveryfamiliarwiththeteachingmaterialsinimportanttheoremtogetaproblemimmediatelytoreflect・Forexample,suchatheorem,manycandidatesfeelthatthistheoremisdifficult,infact,canbevividlyrecorded・Ofcourse,thefirstvectorgroupisrepr
