未知类型：{'options': ['[tex=5.786x1.286]g8SwOoc3mjjpDvp+UxwKlmKIyJYBt/w89p9ioRDdWtw=[/tex]', '[tex=2.0x1.286]cdFQTIcX/k6W15SnnVIOSQ==[/tex]为同型矩阵', '[tex=2.0x1.286]cdFQTIcX/k6W15SnnVIOSQ==[/tex]的秩与正惯性指数都对应相等', '[tex=2.0x1.286]cdFQTIcX/k6W15SnnVIOSQ==[/tex]的正惯性指数相等'], 'type': 102}
举一反三
- 设[tex=2.0x1.286]cdFQTIcX/k6W15SnnVIOSQ==[/tex]是[tex=0.643x1.286]ZsZs11iKEvfmzDIurZth8g==[/tex]阶方阵，且[tex=5.786x1.286]g8SwOoc3mjjpDvp+UxwKlmKIyJYBt/w89p9ioRDdWtw=[/tex]，则正确的是[input=type:blank,size:6][/input] . 未知类型：{'options': ['[tex=6.0x1.286]uT60fd3iTh3Cb0usaDNoWpVPAEKezd55b2DG5kI6kS4=[/tex]', '[tex=8.214x1.286]UjPR5vmYvABrZ+plCC6qBWfhfHN/toiy7hP5ZybHvQU=[/tex]', '[tex=8.214x1.286]IkA4G4ihMbb2iNZKyn/eihJfGfrq0WYtzVJVmzFbYws=[/tex]', '[tex=11.143x1.286]8yg3SxXjDJ8EDUlBLqEszERGAGhJRJw8wz16BkNIjmN17SoyLMSIbTt5Szsj6w+r[/tex]'], 'type': 102}
- 设[tex=2.0x1.286]cdFQTIcX/k6W15SnnVIOSQ==[/tex]为同阶对称矩阵，则下列结论中不正确的是[input=type:blank,size:6][/input] . 未知类型：{'options': ['[tex=2.714x1.286]HqIzVk/FgrqCQ/miBSp3sA==[/tex]也是对称矩阵', '[tex=1.571x1.286]cHJ4KDAad01mWuGaiQQpfA==[/tex]也是对称矩阵', '[tex=4.143x1.286]4dNstrEO5SrY9Vx3vH1DNSwdl6C2OGg7J2yuAMxhmBM=[/tex]（[tex=0.857x1.286]VtHyCG+ZQg7fAIyRU+W9ow==[/tex]为正整数）也是对称矩阵', '[tex=5.429x1.286]HADq+tNK5GwsMk1x8KZJs3wpAw6M18PJvuNQqoVPof0=[/tex]也是对称矩阵'], 'type': 102}
- 设[tex=2.0x1.286]cdFQTIcX/k6W15SnnVIOSQ==[/tex]均为正定矩阵，证明[tex=5.0x2.786]075gCzZzsMRb6HYXYk9X92zk8W4u1qJBIO8aFf+ZsZxwp/haXQ2S0bij0nON3lddoX4sG6nvdaxHgFoCKqduPw==[/tex]为正定矩阵 .
- 设三阶矩阵[tex=2.0x1.286]cdFQTIcX/k6W15SnnVIOSQ==[/tex]满足[tex=6.5x1.286]fKMuxXvMmkhZ6KBFJApU0RzCv0uzUPjL4nc3K7Aig7k=[/tex]，证明：[tex=3.214x1.286]CxRh2MuWfyX9bh9PvBg47Q==[/tex]可逆 .
- 设[tex=2.0x1.286]cdFQTIcX/k6W15SnnVIOSQ==[/tex]为[tex=0.643x1.286]ZsZs11iKEvfmzDIurZth8g==[/tex]阶可逆方阵，则下列等式[input=type:blank,size:6][/input]是错误的 . 未知类型：{'options': ['[tex=7.429x1.429]ZTbiE9Y0ln8So02J2X7smkTz/PgJS9VvpDAl2g7eDKe4gUsAKaYJSvvmmdwi991cMhzFu4GWOcwilAu2g8olqg==[/tex]', '[tex=10.214x1.286]04xA38H7ZVpgg5WrFSMT4c+yjNPApMmkB0rqDvrzHE6AckU+38dJ7SukdONxO1iB0rsStCQG3JPOtjULccUW+btakBj3/UEtJt6Oh2Iz4jU=[/tex]', '[tex=10.571x1.286]28EdYWOVyrJG8r1hi/1Mc5lk2MX3V4h/B2YuW1ABHAap6J2G1MEnV2RRJxoh8pUQ[/tex]', '[tex=6.0x1.286]hm4++QrJQp91sVYV7ruRyhFZzMJEHI5UdUekobEg1A6FpDS5M/s6oj7+Oc9l5cKf[/tex]'], 'type': 102}
内容
- 0
设[tex=2.0x1.286]cdFQTIcX/k6W15SnnVIOSQ==[/tex]为任意两事件， 则下列关系成立的有[input=type:blank,size:6][/input] . 未知类型：{'options': ['[tex=6.214x1.286]Yd6CgGnJgnzBNz6J3Tb3kmpsrjkNaZjWRHcyvPiSQ18=[/tex]', '[tex=6.214x1.286]Yd6CgGnJgnzBNz6J3Tb3kpLJK8+19/ZbWPbam8f3emk0ci3CJkNZ4YQao2JOp902[/tex]', '[tex=6.214x1.286]l9hbij6l4Tzkh4Tx3R4/DiYm+LoeYlZBG9wyoB2knCs=[/tex]', '[tex=8.0x1.286]l9hbij6l4Tzkh4Tx3R4/DuQxqvxVegY8AkQBL+Ck4MXIV8dccT1UUH0KBZvr+NXd[/tex]', '[tex=11.071x1.286]Kq3oQVItipZm5uER2EC0Biy/18OzRS5tTlJwMUvAv2g=[/tex]'], 'type': 102}
- 1
设[tex=0.643x1.286]ZsZs11iKEvfmzDIurZth8g==[/tex]阶方阵[tex=2.0x1.286]cdFQTIcX/k6W15SnnVIOSQ==[/tex]对应的伴随矩阵分别为[tex=2.786x1.286]Ih6DdOteTDQD0IahSuDV+MNSgXPTuu1Ja8QyRKdAvZY=[/tex]，分块矩阵[tex=6.714x2.786]Nw/iCPiBfAazOGg7nvEajlIw5jl+RO2SmNA9Qn1esVrtkE61ENUIdDPBRH6LlIjO5nrmgJINYZl9Mz/vn8A77g==[/tex]，则[tex=0.786x1.286]TKU5UzNEMzEJwORo6mbEYA==[/tex]的伴随矩阵[tex=2.286x1.286]u8qm2vC3bRLP5hGbGpXdxQ==[/tex][input=type:blank,size:6][/input] . 未知类型：{'options': ['[tex=8.571x3.357]075gCzZzsMRb6HYXYk9X9990UXSwhC4aS30j1YPiTgm3hmsejR/bK2E8n1cVIljP7h60RdT5WNUgHpIYQoHRjpKcCKdCYJ5JVFXKNxTEYz8=[/tex]', '[tex=8.571x3.357]075gCzZzsMRb6HYXYk9X987kyvm6Bsv7fv0XQqco2wEnlTNuea0WEb/NW+27Jyq1Wafep6VDoei2pagyRySH9WiMqBoCRNZdNWUvJBmha+4=[/tex]', '[tex=8.571x3.357]075gCzZzsMRb6HYXYk9X91WL96pCMLEUzVoc6/gfhbPbPJbu++pGgO7iJGvPdZgyFUfh2R3zWya9FQcxBpm2BTnPH+YrqimmpYUrtpd7UoA=[/tex]', '[tex=8.571x3.357]075gCzZzsMRb6HYXYk9X9+YJAcVgyDBoIsVPDf3JvYmjIdJkhb05eI5c1c7O7acymrJ1qew3k4pHA1Hx97MhOcjokDjvPmd3LFt0w27+ji8=[/tex]'], 'type': 102}
- 2
当事件[tex=2.0x1.286]cdFQTIcX/k6W15SnnVIOSQ==[/tex]同时发生时，事件[tex=0.786x1.286]TKU5UzNEMzEJwORo6mbEYA==[/tex]必发生，则下列结论正确的是[input=type:blank,size:6][/input] . 未知类型：{'options': ['[tex=6.571x1.286]OT3hM/1m2oVSA73PwLjnb1isZFHVJ0ZUNodzdhD445U=[/tex]', '[tex=7.643x1.286]+TZ/cFUcoIuSWevKDqlQXcoAA8kma90tF2IQFAAw3vo=[/tex]', '[tex=10.929x1.286]x+p9SQUPi6TujDKnIb0633hBPsARhFfKSwwAqETYhXA=[/tex]', '[tex=10.929x1.286]NkA7/QDGaJ9ZzqpIyxjpbu/ioGiUbh5d+2GLmL2w+n8=[/tex]'], 'type': 102}
- 3
设[tex=2.0x1.286]cdFQTIcX/k6W15SnnVIOSQ==[/tex]为同阶方阵，则下面结论中正确的是[input=type:blank,size:6][/input] . 未知类型：{'options': ['[tex=7.857x1.286]sDhTyAOIenRGIL5QP4rzfBX6DKQwAIjOJwiD0UeM2G22lIO9OCTjFq/XF/7QPmFB[/tex]且[tex=2.857x1.286]fuglV0muC7HrRCBC+UM7iw==[/tex]', '[tex=7.357x1.286]Ad1xOrHEg7jJ7ZYwaOIOThaEnktXUmnxMcAy/XA/T9+S20nlU9/ga+iNlUcbbUXD[/tex]', '[tex=8.429x1.286]RT4EWfux52G0o1yhmcp63rVYQk+ViNF9Mi5fBNUrzzlLclEDg4dtwDfWhOiZF3ho[/tex]或[tex=3.143x1.286]AHPyffuWokLRqDp9qAwSwA==[/tex]', '[tex=7.357x1.286]Sr7PA1FZ2Ma77kPpTBeeb2mWrwTN4BlY4hmk/nXgiim3hQoLLzsYGEBUAy1ec0YC[/tex]'], 'type': 102}
- 4
设[tex=2.0x1.286]cdFQTIcX/k6W15SnnVIOSQ==[/tex]为同阶方阵，[tex=0.571x1.286]pc/qlnA3cxu8Ag9jp3tYHQ==[/tex]为数，则下列结论中不正确的是[input=type:blank,size:6][/input] . 未知类型：{'options': ['[tex=7.357x1.214]t3iTEINjEj2mMvMZYJ+qQHQupg9IdbAIHZiqo0G79zK1lw4aARu1RT4Vx4ekqOkp[/tex]', '[tex=7.143x1.286]rg/tanhSt8Ib+XhloNXhfvk4dW94OZJZp5DLfwHhvy0TnRzvq0AO8n629FbR3Ze7[/tex]或[tex=2.786x1.286]ix9LF8C+wWVgZdwLEnW5lQ==[/tex]', '[tex=7.357x1.286]Ad1xOrHEg7jJ7ZYwaOIOThaEnktXUmnxMcAy/XA/T9+S20nlU9/ga+iNlUcbbUXD[/tex]', '[tex=8.429x1.286]RT4EWfux52G0o1yhmcp63rVYQk+ViNF9Mi5fBNUrzzlLclEDg4dtwDfWhOiZF3ho[/tex] 或[tex=3.143x1.286]AHPyffuWokLRqDp9qAwSwA==[/tex]'], 'type': 102}