(完整)线性代数考题及答案A

经典word整理文档，仅参考，双击此处可删除页眉页脚。本资料属于网络整理，如有侵权，请联系删除，谢谢！A2分1412123,B,C25A【】3445636.BACABC。BCACABnAA–EE是n】21A为3【】2A为3A】a,a,a】123,,23aa,aa,aaaaaa1223311212a,2a,2aaa,a,aa23231213,,(a1amm】,,,0kk使kaka1m11mm为Ax【0】amnn．.AABAAAFpgAaxaxax0ab、i112233bxbxbx0ii1122332【】aaaaaaaaa0001212313122bb2bbbb1b3bb312122xxx1123x2xx1【】1233x3x2xa123D。=0ηηηAx设，，123【】ηηη，，ηηη与，，123123ηηηηηη－,－，－ηηηηηη，+，++122331113123【】AA有n个【】R【】nn{(,,,)|{(a,a,,)|aaaaaaa12n1212ni{(,,,)|,,}1aa1aazinn{(a,a,,)|aai2i12ni1FVVVV3112312321231312】(A)det,AM(R)设MRnRの【】是MnnnR【(,,)xxx是R令】33123),0()(2,,0)xxxxx12323()(,,)()x,cosx,0)pxxx2321212FpgA【】10011201152-101-12-211-11321-201122102AB为2A】2-310-1000-1014-2-41-4-24f(x,x,x)x2xx2xx】211231223100A02aa】0a8a<8aa＜a21-1320,,=。ABAAAB记为20TT0112AAA.T35438951.276a(,2,3),a(4,t,6),a(0,0,1)t=.123.xxx01232xx3x0123x,0,2)1x(3,4,2是3Axb、TTAx0有一个非零解=。FpgA123.A04500-6是3Aξ(1,1,3)、ξ(4,a,12)是ATT12。f(x,x,x)x22xx2x4xx221231121380345-3410022-26-2721-4-1-5-3。求-1A-164x2xxx012343xxxx06712342x4x2x2x01234x2x3124xxx107123xxa23aa,aa,a,aaaa,123112321233FpgA2222-20182611T1-124-12002080345345322-26923410…………3分96.…………6分D…………1分022206921-4-3100(|)AE153010164001-4-310010-35-400-10-110…………2分0-10-110…………4分02110001-121100223221-100101-10…………5分A,……61001-12-121-2-2-3223A*-110A1-10…………6分…………5分-121-121FpgA-2-2-3-110A…………2分*-121，…………5分TTxkkkk（、………6分112212120,011-2A-000a-2x32x当a2x(12x2x3232x12x()x0k1…………6分或(x),13x2x3212312(k…………6分).即x2k101x…………1分x,x,xx1x使12312233即()()()0xxaxxaxxa121122133由a,a,a123xx0122xx0…………1分