[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fsUY3v5B5EAxiE5Jigp7fqkne1XoaAmigpqVBd2Kie-M":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":31,"type":32},[],"2024-06-25 15:34:50",155351591,[8,9,10,11],"k=7","k=8","k=6","k=5",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},20,"f28721ad9ec4baef0d643c07032a239e","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F60770ba58c818a1766f527d0f7885717.png","线性代数","exam_115960349","1.2矩阵的运算(一)","设\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fc8d983264a3c32194350aa6d2071441c.webp\">k取什么值时AB=BA?( )",[21,33,42,51,60,69,79,87,92,97],{"answer":22,"createTime":23,"id":24,"options":25,"question":30,"source":31,"type":32},[],"2024-06-25 15:33:04",155349508,[26,27,28,29],"x=2,y=7,z=5","x=-4,y=-5,z=-5","x=-4,y=-5,z=5","x=2,y=-5,z=5","设\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fcfc28ef155504f204dc3b6ee1a2c9c13.webp\">,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F14e34798262bcd0d6d2935022ec31eae.webp\">,若A=-B,则( )","v1",0,{"answer":34,"createTime":23,"id":35,"options":36,"question":41,"source":31,"type":32},[],155349510,[37,38,39,40],"a=12,b=10","a=5,b=11","a=11,b=0","a=5,b=7","已知\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F9aa570b468d7625bc13063b260809cf9.webp\">满足AB=BA,则a,b的值分别为( )",{"answer":43,"createTime":23,"id":44,"options":45,"question":50,"source":31,"type":32},[],155349512,[46,47,48,49],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F8c85bbd9e1194af4f294ee1851309205.webp\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fabffa831e2454874c98d97583bd3c572.webp\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3b73e28695803227cb7882aa2662631b.webp\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F161ec518bb19b73c48e890ee2d4d754d.webp\">","设\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F06523c89fbbccd10f9f7af2198597112.webp\">则ABA-AB=( )",{"answer":52,"createTime":23,"id":53,"options":54,"question":59,"source":31,"type":32},[],155349514,[55,56,57,58],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3433ff4103c925aeaac22597f8b29d5e.webp\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F8d678560703ebbf19f51dde5160658ee.webp\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F0835a10b18d6ed5cb1e29d7b25589c61.webp\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa0d139b7a3f8d4e177b1218e8eaf7b1f.webp\">","设A、B均为n阶方阵,且满足\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F15e39847c0968b700549a1580a6701fa.webp\">则必有( )",{"answer":61,"createTime":23,"id":62,"options":63,"question":68,"source":31,"type":32},[],155349516,[64,65,66,67],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F4767c0f6ac838855261eb01d6f54e2f9.webp\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F354b1e39a4ce134cd3400df0cdd6a8c1.webp\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F714b8bc3e1ac6f409662d0113f74c4a6.webp\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa769ea2aff8a62fbb200bd12a0ff519e.webp\">","如果已知矩阵\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F48fe584a9e57e3a11a6bc38a0e350c8c.webp\">则下列运算结果不为n阶矩阵的是( )",{"answer":70,"createTime":71,"id":72,"options":73,"question":78,"source":31,"type":32},[],"2024-06-25 15:33:05",155349518,[74,75,76,77],"2,3,6,-1","-1,6,3,2","1,-6,-3,-1","-2,3,1,-4","如果矩阵\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ffbeef6324853a67d5786dc26c6bc13e4.webp\">,则a,b,c,d的值分别为( )",{"answer":80,"createTime":71,"id":81,"options":82,"question":85,"source":31,"type":86},[],155349520,[83,84],"正确","错误","对于同型矩阵A、B,矩阵A+B才有意义",3,{"answer":88,"createTime":71,"id":89,"options":90,"question":91,"source":31,"type":86},[],155349523,[83,84],"如果\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1c11dac883591b69835bf2bb3dac9275.webp\">,并且\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fae558e48a4f8de6d9394e37c3abbf266.webp\">,那么\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3e369a697bba0448ee9947f30558950f.webp\">",{"answer":93,"createTime":71,"id":94,"options":95,"question":96,"source":31,"type":86},[],155349524,[83,84],"设A,B为n阶方阵,则\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fb6b67b3e72e6ac7136d1ea1444c427f1.webp\">",{"answer":98,"createTime":71,"id":99,"options":100,"question":101,"source":31,"type":86},[],155349525,[83,84],"设\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F04a2884274193a9e1d52ad164aa76a8f.webp\">则\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F22975de4c8eb19274b2730ffb98edfe6.webp\">"]