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1、准考证号:010315101298姓名:郭浩(男) HYPERLINK /Appraise/Main.aspx?h=7B54F1B8 首页 HYPERLINK /Appraise/PageNormal/ShowPolicies.aspx?t=1 t /Appraise/PageKS/_blank 使用说明 HYPERLINK /Appraise/PageNormal/ShowPolicies.aspx?t=2 t /Appraise/PageKS/_blank 政策与新闻 HYPERLINK /Appraise/PageNormal/ShowPolicies.aspx?t=3 t /Appra

2、ise/PageKS/_blank 通知通告 HYPERLINK /Appraise/PageEdu/ChangePassWord.aspx?h=7B54F1B8 修改密码 HYPERLINK /Appraise/Default.aspx 退出考生综合测评答题记录返回 综合测试 列表本套测试试卷共 27 题,共 100 分。答题得分:0分【题型:单选】【分数:2分】 得分:0分1INCLUDEPICTURE d /Appraise/uploads/exam/201301/20130117101138367001.gif * MERGEFORMATINET ABCD答:答案:D【题型:单选】【分

3、数:2分】 得分:0分2INCLUDEPICTURE d /Appraise/uploads/exam/201301/20130117100331296001.gif * MERGEFORMATINET ABCD答:答案:B【题型:单选】【分数:2分】 得分:0分3INCLUDEPICTURE d /Appraise/uploads/exam/201301/20130117100644814001.gif * MERGEFORMATINET ABCD答:答案:D【题型:单选】【分数:2分】 得分:0分4INCLUDEPICTURE d /Appraise/uploads/exam/201301

4、/20130117100118769001.gif * MERGEFORMATINET ABCD答:答案:A【题型:单选】【分数:2分】 得分:0分5INCLUDEPICTURE d /Appraise/uploads/exam/201301/20130117101347486001.gif * MERGEFORMATINET ABCD答:答案:C【题型:单选】【分数:2分】 得分:0分6INCLUDEPICTURE d /Appraise/uploads/exam/201301/20130117095055508001.gif * MERGEFORMATINET ABCD答:答案:B【题型:

5、单选】【分数:2分】 得分:0分7INCLUDEPICTURE d /Appraise/uploads/exam/201301/20130117100848444001.gif * MERGEFORMATINET ABCD答:答案:D【题型:单选】【分数:2分】 得分:0分8INCLUDEPICTURE d /Appraise/uploads/exam/201301/20130117101222474001.gif * MERGEFORMATINET ABCD答:答案:B【题型:单选】【分数:2分】 得分:0分9INCLUDEPICTURE d /Appraise/uploads/exam/2

6、01301/20130117100536044001.gif * MERGEFORMATINET ABCD答:答案:C【题型:单选】【分数:2分】 得分:0分10INCLUDEPICTURE d /Appraise/uploads/exam/201301/20130117095943815001.gif * MERGEFORMATINET ABCD答:答案:C【题型:填空】【分数:2分】 得分:0分11INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117135721717001.gif * MERGEFORMATINET 答:的

7、萨达答案:2【题型:填空】【分数:2分】 得分:0分12INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117140529887001.gif * MERGEFORMATINET 答:答案:2【题型:填空】【分数:2分】 得分:0分13设A为45的矩阵,且秩(A)=2,则齐次方程Ax=0的基础解系所含向量的个数是_答:答案:3【题型:填空】【分数:2分】 得分:0分14INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117135544155001.gif * MERG

8、EFORMATINET 答:的萨达啊实打实的答案:-n【题型:填空】【分数:2分】 得分:0分15INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117143941072001.gif * MERGEFORMATINET 答:大声道撒答案:INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117144000871001.gif * MERGEFORMATINET -1,2,-1【题型:填空】【分数:2分】 得分:0分16INCLUDEPICTURE d /Apprais

9、e/uploads/exercise/201301/20130117141414800001.gif * MERGEFORMATINET 答:答案:INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117141432630001.gif * MERGEFORMATINET 【题型:填空】【分数:2分】 得分:0分17INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117142008336001.gif * MERGEFORMATINET (写成小数形式,保留三位有效数字

10、)答:答案:0.333【题型:填空】【分数:2分】 得分:0分18INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117135940930001.gif * MERGEFORMATINET 答:答案:-2【题型:填空】【分数:2分】 得分:0分19INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117140951651001.gif * MERGEFORMATINET 答:答案:1【题型:填空】【分数:2分】 得分:0分20设A为5阶方阵,且r(A)=3,则线性空间W

11、=x|Ax=0的维数是_答:打算撒答案:2【题型:计算】【分数:9分】 得分:0分21用配方法化二次型f(x1,x2,x3)=INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117170033417001.gif * MERGEFORMATINET 为标准形,并判别其正定性.INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117170306353001.gif * MERGEFORMATINET INCLUDEPICTURE d /Appraise/uploads/e

12、xercise/201301/20130117170306274002.gif * MERGEFORMATINET 为正定二次型(填是或不是)答:答案:f=INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117170336410001.gif * MERGEFORMATINET ,INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117170336765002.gif * MERGEFORMATINET INCLUDEPICTURE d /Appraise/upload

13、s/exercise/201301/20130117170336355003.gif * MERGEFORMATINET 故得标准型f=INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117170336503004.gif * MERGEFORMATINET 对于二次型矩阵INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117170336451005.gif * MERGEFORMATINET INCLUDEPICTURE d /Appraise/uploads/ex

14、ercise/201301/20130117170336516006.gif * MERGEFORMATINET 所以不是正定性的。1,1,-6;不是【题型:计算】【分数:9分】 得分:0分22设3元二次型INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117164925964001.gif * MERGEFORMATINET ,求正交变换INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117164925552002.gif * MERGEFORMATINET ,将二

15、次型化为标准形正交矩阵的第一列元素为 , , ;第二列元素为 , , ;第三列元素为 , , 。(若为分数写成小数形式,保留三位有效数字)标准形为INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117165143159001.gif * MERGEFORMATINET 答:答案:解:二次型的矩阵为INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117164953237001.gif * MERGEFORMATINET INCLUDEPICTURE d /Apprais

16、e/uploads/exercise/201301/20130117164953346002.gif * MERGEFORMATINET INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117164953033003.gif * MERGEFORMATINET ,特征值INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117164953966004.gif * MERGEFORMATINET ,INCLUDEPICTURE d /Appraise/uploads/exe

17、rcise/201301/20130117164953937005.gif * MERGEFORMATINET ,【题型:计算】【分数:9分】 得分:0分23INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117162346763001.gif * MERGEFORMATINET 答:答案:INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117162406034001.gif * MERGEFORMATINET 特解的分量为-8,13,0,2,导出组中INCLUDEP

18、ICTURE d /Appraise/uploads/exercise/201301/20130117162429184001.gif * MERGEFORMATINET 的分量为-1 ,1,1,0。【题型:计算】【分数:9分】 得分:0分24INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117120308101001.gif * MERGEFORMATINET 答:答案:48【题型:计算】【分数:9分】 得分:0分25INCLUDEPICTURE d /Appraise/uploads/exercise/201301/2013

19、0117153203999001.gif * MERGEFORMATINET 极大线性无关组由第个向量,第个向量及第个向量组成;不在极大线性无关组中的第个向量可表为倍的第个向量+倍的第个向量+倍的第个向量。答:答案:INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117153451449001.gif * MERGEFORMATINET 极大线性无关组由第1个向量,第2个向量及第3个向量组成;不在极大线性无关组中的第4个向量可表为0倍的第1个向量+2倍的第2个向量+0倍的第3个向量。【题型:计算】【分数:9分】 得分:0分26IN

20、CLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117152448370001.gif * MERGEFORMATINET X的第一行元素为 , ,第二行元素为 , ,第三行元素为 , .答:答案:INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117152504563001.gif * MERGEFORMATINET 3,-1,2,0,1,-1【题型:证明】【分数:6分】 得分:0分27设A为mINCLUDEPICTURE d /Appraise/uploads/tas

21、ks/201301/20130117171812245001.gif * MERGEFORMATINET n实矩阵,ATA为正定矩阵.证明:线性方程组AINCLUDEPICTURE d /Appraise/uploads/tasks/201301/20130117171812363002.gif * MERGEFORMATINET =0只有零解.答:答案:左乘|转置|可逆版权所有(C) 2013 HYPERLINK /Appraise/PageKS/KSExamLog.aspx?k=04184&h=7B54F1B8&id=19992 t /Appraise/PageKS/_blank 河南省招

22、生考试信息中心推荐浏览器:Internet Explorer 6+, FireFox 2+, Safari 4+, Opera 9+, Chrome准考证号:010315101298姓名:郭浩(男) HYPERLINK /Appraise/Main.aspx?h=7B54F1B8 首页 HYPERLINK /Appraise/PageNormal/ShowPolicies.aspx?t=1 t /Appraise/PageKS/_blank 使用说明 HYPERLINK /Appraise/PageNormal/ShowPolicies.aspx?t=2 t /Appraise/PageKS/

23、_blank 政策与新闻 HYPERLINK /Appraise/PageNormal/ShowPolicies.aspx?t=3 t /Appraise/PageKS/_blank 通知通告 HYPERLINK /Appraise/PageEdu/ChangePassWord.aspx?h=7B54F1B8 修改密码 HYPERLINK /Appraise/Default.aspx 退出考生综合测评答题记录返回 综合测试 列表本套测试试卷共 27 题,共 100 分。答题得分:0分【题型:单选】【分数:2分】 得分:0分1INCLUDEPICTURE d /Appraise/uploads/

24、exam/201301/20130117101208198001.gif * MERGEFORMATINET ABCD答:答案:B【题型:单选】【分数:2分】 得分:0分2INCLUDEPICTURE d /Appraise/uploads/exam/201301/20130117100356484001.gif * MERGEFORMATINET ABCD答:答案:C【题型:单选】【分数:2分】 得分:0分3INCLUDEPICTURE d /Appraise/uploads/exam/201301/20130117100820287001.gif * MERGEFORMATINET ABC

25、D答:答案:B【题型:单选】【分数:2分】 得分:0分4INCLUDEPICTURE d /Appraise/uploads/exam/201301/20130117100142730001.gif * MERGEFORMATINET ABCD答:答案:C【题型:单选】【分数:2分】 得分:0分5INCLUDEPICTURE d /Appraise/uploads/exam/201301/20130117100344711001.gif * MERGEFORMATINET ABCD答:答案:C【题型:单选】【分数:2分】 得分:0分6INCLUDEPICTURE d /Appraise/upl

26、oads/exam/201301/20130117095840884001.gif * MERGEFORMATINET ABCD答:答案:D【题型:单选】【分数:2分】 得分:0分7INCLUDEPICTURE d /Appraise/uploads/exam/201301/20130117101057430001.gif * MERGEFORMATINET ABCD答:答案:A【题型:单选】【分数:2分】 得分:0分8INCLUDEPICTURE d /Appraise/uploads/exam/201301/20130117101402393001.gif * MERGEFORMATINE

27、T ABCD答:答案:D【题型:单选】【分数:2分】 得分:0分9INCLUDEPICTURE d /Appraise/uploads/exam/201301/20130117100602853001.gif * MERGEFORMATINET ABCD答:答案:C【题型:单选】【分数:2分】 得分:0分10INCLUDEPICTURE d /Appraise/uploads/exam/201301/20130117100901351001.gif * MERGEFORMATINET ABCD答:答案:C【题型:填空】【分数:2分】 得分:0分11INCLUDEPICTURE d /Appra

28、ise/uploads/exercise/201301/20130117143104115001.gif * MERGEFORMATINET 答:是打算萨达是答案:2【题型:填空】【分数:2分】 得分:0分12INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117140820354001.gif * MERGEFORMATINET 答:答案:2【题型:填空】【分数:2分】 得分:0分13若矩阵INCLUDEPICTURE d /Appraise/uploads/exercise/201301/2013011717363409000

29、1.gif * MERGEFORMATINET 与矩阵INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117173634144002.gif * MERGEFORMATINET 相似,则INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117173634934003.gif * MERGEFORMATINET _答:答案:2【题型:填空】【分数:2分】 得分:0分14INCLUDEPICTURE d /Appraise/uploads/exercise/201301/2

30、0130117135721717001.gif * MERGEFORMATINET 答:答案:2【题型:填空】【分数:2分】 得分:0分15INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117144446567001.gif * MERGEFORMATINET (若某空处为非整数,用小数表示)答:答案:INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117144523501001.gif * MERGEFORMATINET 0.5,0.5,0.5,5【题型:填空】【

31、分数:2分】 得分:0分16已知向量=(1,2,-1)与向量=(0,1,y)正交,则y=_答:答案:2【题型:填空】【分数:2分】 得分:0分17INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117142155190001.gif * MERGEFORMATINET 答:答案:0,-5,-5【题型:填空】【分数:2分】 得分:0分18INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117140154407001.gif * MERGEFORMATINET 答:答案:

32、2【题型:填空】【分数:2分】 得分:0分19INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117141539525001.gif * MERGEFORMATINET 答:答案:0【题型:填空】【分数:2分】 得分:0分20INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117134934624001.gif * MERGEFORMATINET 答:答案:5【题型:计算】【分数:9分】 得分:0分21INCLUDEPICTURE d /Appraise/upload

33、s/exercise/201301/20130117144850618001.gif * MERGEFORMATINET A的逆的第一行上的三个元素分别为 , , ,第二行上的三个元素分别为 , , ,第三行上的三个元素分别为 , , . (若某空处为分数,用小数表示)答:答案:INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117145131514001.gif * MERGEFORMATINET 0.5,-1,0.5;0,1,-1;-0.5,0,0.5【题型:计算】【分数:9分】 得分:0分22INCLUDEPICTURE d

34、 /Appraise/uploads/exercise/201301/20130117151956401001.gif * MERGEFORMATINET X的第一行元素为 , , ,第二行元素为 , , ,第三行元素为 , , .(若为分数写成小数形式,若为无穷小数保留三位有效数字)答:答案:1,0.5,0;-0.333,1,0;0,0,2INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117151905787001.gif * MERGEFORMATINET 【题型:计算】【分数:9分】 得分:0分23设矩阵INCLUDEPI

35、CTURE d /Appraise/uploads/exercise/201301/20130117163421041001.gif * MERGEFORMATINET ,求对角矩阵INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117163421373002.gif * MERGEFORMATINET 和可逆矩阵INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117163421663003.gif * MERGEFORMATINET ,使INCLUDEPICTURE

36、 d /Appraise/uploads/exercise/201301/20130117163421491004.gif * MERGEFORMATINET 对角矩阵INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117163421373002.gif * MERGEFORMATINET 对角线上的元素为 , , ;可逆矩阵P第一列上的元素为 , , ;第二列上的元素为 , , ;第三列上的元素为 , , 。答:答案:对角矩阵INCLUDEPICTURE d /Appraise/uploads/exercise/201301/2

37、0130117163421373002.gif * MERGEFORMATINET 对角线上的元素为1 ,1 ,6 ;可逆矩阵P第一列上的元素为0 ,1 ,0 ;第二列上的元素为-1 ,0 ,1 ;第三列上的元素为0.25 ,0.75 ,1 。(1)INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117163716836001.gif * MERGEFORMATINET INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117163716128002.gif * MER

38、GEFORMATINET ,特征值INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117163716922003.gif * MERGEFORMATINET 【题型:计算】【分数:9分】 得分:0分24INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117154238464001.gif * MERGEFORMATINET 当t=时,向量组的秩为,极大线性无关组可由第个向量和第个向量组成;当t不等于时,向量组的秩为,极大线性无关组可由第个向量,第个向量和第个向量组成。

39、答:答案:当t=3时,向量组的秩为2,极大线性无关组可由第1个向量和第2个向量组成;当t不等于3时,向量组的秩为3,极大线性无关组可由第1个向量,第2个向量和第3个向量组成。INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117154301896001.gif * MERGEFORMATINET 【题型:计算】【分数:9分】 得分:0分25INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117155246154001.gif * MERGEFORMATINET 其中得

40、到的特解的各分量分别为 , , , , ,基础解系中INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117155532876001.gif * MERGEFORMATINET 的分量为 , , , , ,INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117155548238001.gif * MERGEFORMATINET 的分量为 , , , , .答:答案:INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20

41、130117155307168001.gif * MERGEFORMATINET -16,23,0,0,0;1,-2,0,1,0;5,-6,0,0,1【题型:计算】【分数:9分】 得分:0分26INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117152705190001.gif * MERGEFORMATINET 答:答案:5,1INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117152719189001.gif * MERGEFORMATINET 【题型:证明】

42、【分数:6分】 得分:0分27设A为mINCLUDEPICTURE d /Appraise/uploads/tasks/201301/20130117171812245001.gif * MERGEFORMATINET n实矩阵,ATA为正定矩阵.证明:线性方程组AINCLUDEPICTURE d /Appraise/uploads/tasks/201301/20130117171812363002.gif * MERGEFORMATINET =0只有零解.答:答案:左乘|转置|可逆版权所有(C) 2013 HYPERLINK /Appraise/PageKS/KSExamLog.aspx?k

43、=04184&h=7B54F1B8&id=19993 t /Appraise/PageKS/_blank 河南省招生考试信息中心推荐浏览器:Internet Explorer 6+, FireFox 2+, Safari 4+, Opera 9+, Chrome准考证号:010315101298姓名:郭浩(男) HYPERLINK /Appraise/Main.aspx?h=7B54F1B8 首页 HYPERLINK /Appraise/PageNormal/ShowPolicies.aspx?t=1 t /Appraise/PageKS/_blank 使用说明 HYPERLINK /Appr

44、aise/PageNormal/ShowPolicies.aspx?t=2 t /Appraise/PageKS/_blank 政策与新闻 HYPERLINK /Appraise/PageNormal/ShowPolicies.aspx?t=3 t /Appraise/PageKS/_blank 通知通告 HYPERLINK /Appraise/PageEdu/ChangePassWord.aspx?h=7B54F1B8 修改密码 HYPERLINK /Appraise/Default.aspx 退出考生综合测评答题记录返回 综合测试 列表本套测试试卷共 30 题,共 100 分。答题得分:0

45、分【题型:单选】【分数:2分】 得分:0分1INCLUDEPICTURE d /Appraise/uploads/exam/201301/20130117100820287001.gif * MERGEFORMATINET ABCD答:答案:B【题型:单选】【分数:2分】 得分:0分2INCLUDEPICTURE d /Appraise/uploads/exam/201301/20130117100142730001.gif * MERGEFORMATINET ABCD答:答案:C【题型:单选】【分数:2分】 得分:0分3INCLUDEPICTURE d /Appraise/uploads/e

46、xam/201301/20130117100331296001.gif * MERGEFORMATINET ABCD答:答案:B【题型:单选】【分数:2分】 得分:0分4INCLUDEPICTURE d /Appraise/uploads/exam/201301/20130117095158070001.gif * MERGEFORMATINET ABCD答:答案:B【题型:单选】【分数:2分】 得分:0分5INCLUDEPICTURE d /Appraise/uploads/exam/201301/20130117101039107001.gif * MERGEFORMATINET ABCD

47、答:答案:D【题型:单选】【分数:2分】 得分:0分6INCLUDEPICTURE d /Appraise/uploads/exam/201301/20130117101347486001.gif * MERGEFORMATINET ABCD答:答案:C【题型:单选】【分数:2分】 得分:0分7INCLUDEPICTURE d /Appraise/uploads/exam/201301/20130117100551331001.gif * MERGEFORMATINET ABCD答:答案:B【题型:单选】【分数:2分】 得分:0分8INCLUDEPICTURE d /Appraise/uplo

48、ads/exam/201301/20130117100848444001.gif * MERGEFORMATINET ABCD答:答案:D【题型:单选】【分数:2分】 得分:0分9INCLUDEPICTURE d /Appraise/uploads/exam/201301/20130117100207472001.gif * MERGEFORMATINET ABCD答:答案:D【题型:单选】【分数:2分】 得分:0分10INCLUDEPICTURE d /Appraise/uploads/exam/201301/20130117101508335001.gif * MERGEFORMATINE

49、T ABCD答:答案:A【题型:填空】【分数:2分】 得分:0分11若矩阵INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117173634090001.gif * MERGEFORMATINET 与矩阵INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117173634144002.gif * MERGEFORMATINET 相似,则INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117173634934

50、003.gif * MERGEFORMATINET _答:答案:2【题型:填空】【分数:2分】 得分:0分12INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117135721717001.gif * MERGEFORMATINET 答:答案:2【题型:填空】【分数:2分】 得分:0分13INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117144446567001.gif * MERGEFORMATINET (若某空处为非整数,用小数表示)答:答案:INCLUDEP

51、ICTURE d /Appraise/uploads/exercise/201301/20130117144523501001.gif * MERGEFORMATINET 0.5,0.5,0.5,5【题型:填空】【分数:2分】 得分:0分14设A为45的矩阵,且秩(A)=2,则齐次方程Ax=0的基础解系所含向量的个数是_答:从V型从v答案:3【题型:填空】【分数:2分】 得分:0分15答:从V型从v答案:【题型:填空】【分数:2分】 得分:0分16INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117142123705001.gi

52、f * MERGEFORMATINET 答:东方闪电答案:0【题型:填空】【分数:2分】 得分:0分17答:东方闪电答案:【题型:填空】【分数:2分】 得分:0分18INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117140037784001.gif * MERGEFORMATINET 答:答案:1【题型:填空】【分数:2分】 得分:0分19INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117141414800001.gif * MERGEFORMATINET 答

53、:答案:INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117141432630001.gif * MERGEFORMATINET 【题型:填空】【分数:2分】 得分:0分20INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117134604460001.gif * MERGEFORMATINET 答:答案:-2,-2,1,-1【题型:填空】【分数:2分】 得分:0分21INCLUDEPICTURE d /Appraise/uploads/exercise/20130

54、1/20130117135817266001.gif * MERGEFORMATINET 答:答案:11【题型:填空】【分数:2分】 得分:0分22INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117101946367001.gif * MERGEFORMATINET (写成小数形式)答:答案:0.5【题型:计算】【分数:9分】 得分:0分23INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117162750953001.gif * MERGEFORMATINET

55、可逆矩阵P的第一列元素为 , , ;第二列元素为 , , ;第三列元素为 , , 。对角矩阵对角线上的元素为 , , 。(若为分数写成小数形式)答:答案:可逆矩阵P的第一列元素为0.5 ,1 ,1 ;第二列元素为 -1 ,-0.5 ,1 ;第三列元素为2 ,-2 ,1 。对角矩阵对角线上的元素为-2 ,1 ,4 。INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117162953090001.gif * MERGEFORMATINET 【题型:计算】【分数:9分】 得分:0分24INCLUDEPICTURE d /Appraise

56、/uploads/exercise/201301/20130117120339089001.gif * MERGEFORMATINET 答:答案:5【题型:计算】【分数:9分】 得分:0分25设3元二次型INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117164925964001.gif * MERGEFORMATINET ,求正交变换INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117164925552002.gif * MERGEFORMATINET ,将二次

57、型化为标准形正交矩阵的第一列元素为 , , ;第二列元素为 , , ;第三列元素为 , , 。(若为分数写成小数形式,保留三位有效数字)标准形为INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117165143159001.gif * MERGEFORMATINET 答:答案:解:二次型的矩阵为INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117164953237001.gif * MERGEFORMATINET INCLUDEPICTURE d /Appraise

58、/uploads/exercise/201301/20130117164953346002.gif * MERGEFORMATINET INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117164953033003.gif * MERGEFORMATINET ,特征值INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117164953966004.gif * MERGEFORMATINET ,INCLUDEPICTURE d /Appraise/uploads/exer

59、cise/201301/20130117164953937005.gif * MERGEFORMATINET ,【题型:计算】【分数:9分】 得分:0分26INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117152705190001.gif * MERGEFORMATINET 答:打算按时答案:5,1INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117152719189001.gif * MERGEFORMATINET 【题型:计算】【分数:9分】 得分:0分27

60、答:打算按时答案:【题型:计算】【分数:9分】 得分:0分28INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117120308101001.gif * MERGEFORMATINET 答:答案:48【题型:计算】【分数:9分】 得分:0分29INCLUDEPICTURE d /Appraise/uploads/exercise/201301/20130117145903987001.gif * MERGEFORMATINET X第一行的元素为 , ,第二行的元素为 , .(若为分数,写成小数形式,保留三位有效数字)答:答案:IN

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