[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fjjZuQZIklxc5dA4ZrqOwLx0O6_GytLTaiv5kluqu7hE":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":14,"question":21,"related":22,"source":33,"type":47},[],"2024-03-31 16:55:40",136410670,[8,9,10,11,12,13],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F6733780312afc9a8ada1ac5b2e33bdc4.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F33fadf4abf7519ccd91910b359cbde0c.png\">","若\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F65014a873c58e7a18dc82bb3b55c3a8e.png\">,则\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F5039fb54c11ab489bc042a316748bc00.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F891b9544c45cb9a25981f5abcccc71e5.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F9618cd0499a3ec600a54de33bdc82310.png\">","若\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F13e253d8a90531193b96985e127d71c0.png\">,则\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1a26e776c470534a474339adb7466f88.png\">",{"count":15,"courseId":16,"courseImg":17,"courseName":18,"workId":19,"workName":20},7,"d228ef2282a4877b279908ec8fbd12ff","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F980f204f67903a229b072f7d2cd402fc.png","23-24(2)线性代数","0b22fc84f61c487aa41f26f6106ebda8","矩阵的秩及方程组的解的判定练习","以下性质错误的是( )",[23,35,44,48,57,64,69],{"answer":24,"createTime":25,"id":26,"options":27,"question":32,"source":33,"type":34},[],"2024-03-31 16:55:39",136410665,[28,29,30,31],"若\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F54f4567d5d1aa85ddf2c5f3ce75ecf98.png\">中有一个\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3976cccc520a3071d27c821c613bb6ea.png\">阶子式不为零,则\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa60532ae11a1ee987074f4f4928e967e.png\">","若\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F54f4567d5d1aa85ddf2c5f3ce75ecf98.png\">中有一个\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3976cccc520a3071d27c821c613bb6ea.png\">阶子式不为零,则\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe612c89a3a0515719a8466d9ffa8915a.png\">","若\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F54f4567d5d1aa85ddf2c5f3ce75ecf98.png\">中所有\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3976cccc520a3071d27c821c613bb6ea.png\">阶子式全为零,则\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fecb57841904002feaf1d3cfb478c3358.png\">","非零矩阵的秩至少等于1","以下叙述正确的是( )","v1",1,{"answer":36,"createTime":5,"id":37,"options":38,"question":43,"source":33,"type":34},[],136410668,[39,40,41,42],"对\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ff09fb3eec5bf1c6d60aa058c9c15eb84.png\">矩阵\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F54f4567d5d1aa85ddf2c5f3ce75ecf98.png\">,有\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fb68ff8e0b598c72110afbe83084dc735.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F82869f6433e9ce7166fac8714cf65f80.png\">","对于\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1dac517aff62a020fcb3bbd85e78ab3f.png\">阶矩阵\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F54f4567d5d1aa85ddf2c5f3ce75ecf98.png\">,矩阵\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F54f4567d5d1aa85ddf2c5f3ce75ecf98.png\">为满秩矩阵的充分必要条件是\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Feff78099e3774a245b97ed1f1609a042.png\">","对于\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1dac517aff62a020fcb3bbd85e78ab3f.png\">阶矩阵\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F54f4567d5d1aa85ddf2c5f3ce75ecf98.png\">,矩阵\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F54f4567d5d1aa85ddf2c5f3ce75ecf98.png\">为降秩矩阵的充分必要条件是\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fbfbce8559c53596d054cb9c2872212e6.png\">","以下结论正确的是( )",{"answer":45,"createTime":5,"id":6,"options":46,"question":21,"source":33,"type":47},[],[8,9,10,11,12,13],0,{"answer":49,"createTime":5,"id":50,"options":51,"question":56,"source":33,"type":47},[],136410672,[52,53,54,55],"有唯一解","有无穷多个解","无解","无法确定","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1dac517aff62a020fcb3bbd85e78ab3f.png\">元线性方程组\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F5096db8c37f7635db9f93f4f320db365.png\">,且\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F267943ee2c272bae4f2d9c7c5693e693.png\">,则方程组\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F5096db8c37f7635db9f93f4f320db365.png\">( )",{"answer":58,"createTime":5,"id":59,"options":60,"question":63,"source":33,"type":47},[],136410674,[61,62,54,55],"只有零解","有非零解","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1dac517aff62a020fcb3bbd85e78ab3f.png\">元齐次线性方程组\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ffa09c561b39111ddfb5edd26292138cf.png\">,且\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F267943ee2c272bae4f2d9c7c5693e693.png\">,则方程组\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ffa09c561b39111ddfb5edd26292138cf.png\">( )",{"answer":65,"createTime":5,"id":66,"options":67,"question":68,"source":33,"type":47},[],136410675,[61,62,54,55],"4元线性方程组\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F2b6fa33b3b42780fe060bdd4953c0ac3.png\"> ( )",{"answer":70,"createTime":71,"id":72,"options":73,"question":78,"source":33,"type":47},[],"2024-03-31 16:55:41",136410676,[74,75,76,77],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F99c9e7c7c53c85d04104e37eb8c9a0c1.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F2ae18896bac09bf4cad6c8880f5b06a8.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa44afe809b3210670abdce748bdafbeb.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F361d3210eff32b54f0bc638637ab902f.png\">","问\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1918d65b5b15ac6ae048979607ad9c8a.png\">取何值时,线性方程组\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F586598158f1e26df64f7d57f3cfa6b88.png\"> 有唯一解"]