线性代数作业答案第一章第一节.pdfVIP免费

第1章第一节1.11(1)312;123123(2)45603607890612;00(3)0000abcd;121(4)0024221;2111111111(5)1113111300111111003xxxxxxxxxxx2.(1)(31452)4，偶;(2)(34152)5，奇;(3)(1)(135212462)2nnnn，当4,41nkk时，偶;当42,43nkk时，奇;(4)(1)(246213521)2nnnn，当4,43nkk时，偶;当41,42nkk时，奇;3.(132645)3,(314256)3,符号为正.4.(13254)2,为使符号为正，(431)ij要为偶数，因为(54231)7，(24531)6，故2i，5j.5.(1324)000000(1)(1)000000abDabcdabcdcd.(121)101000020(2)(1)!(1)!0001000nnnDnnnn1112132122233132334142435152530000(3)0000011aaaaaaDaaaaaaaaa第二节11121314212223243132333441424344111211311421221231243132133134414111111111.(1)111111111()()11()()11()()11xyxyxyxyxyxyxyxyxyxyxyxyxyxyxyxyxyxyyxyyxyxyxyyxyyxyxyxyyxyyxyxyx21431440()()1yyxyyxy222222222222222222222222(1)(2)(3)(1)(2)(3)(2)(1)(2)(3)(1)(2)(3)21446921262144692126021446921262144692126aaaabbbbccccddddaaaaaabbbbbbccccccdddddd22(3)byazbzaxbxaybxaybyazbzaxbzaxbxaybyazybzaxbxayzbzaxbxaybxbyazbzaxaybyazbzaxzbxaybyazxbxaybyazyzbxayyxbxayzzbxayzxbxaybxybzaxbaxzbzaxabyybzaxazxbyazzybyazxxbyaz3222222333()yzbzaxxybyazyzxyzyyxxyxybxyzbaxyxbaxzzbaxzxzxyzxzzyyzyzzzxzzyzxxzxyabyyzabyyxabyzzayzxxxyxxzxyyxyzxyzabzxyyzx1112132122233132332.,aaaDaaaaaaa已知11121312122233132333(1)33;3aaaDaaaaaaa1112132212223313233333(2)33327;333aaaDaaaaaaa111311123212321223133313232(3)323.32aaaaDaaaaaaaaa22223101303013100303(4)01310131101310131010101001010101(3)(3)01310032101300231032(3)0123(3)(1)(5)aaaaaaaaaaaaaaaaaaaaaa