设n阶矩阵A 与s阶矩阵B都可逆,求[tex=5.929x2.929]075gCzZzsMRb6HYXYk9X95BT8z7z4e+4OInb7Y8WX7mlX1JqGvQbOIoyVZF9LvTxogPvhwFUoE0aUeAMjFCx5w==[/tex]

设n阶矩阵A 与s阶矩阵B都可逆,求[tex=5.929x2.929]075gCzZzsMRb6HYXYk9X9wnlXBOdM81Ai4VHwyypbkMOsILM5b5DtPOUEDyBPeKjBLxoeS2aWJk35clIXAe1sw==[/tex]，

求下列曲线在三个坐标面上的投影曲线方程：[tex=5.929x2.929]7EJHVCtO2IWq3KpdB+jQspDaP6nVvgxQ1od/FYjrc+nnUlNxawf3lsQdBzQK/WLG7yx5JkC8Aj0LFAkHaeAUb++0VrZgFafqgftVFmedKtA=[/tex]

设[tex=0.643x1.286]Nud/2eskX2OmQOds9nx+Fw==[/tex]阶矩阵[tex=0.786x1.286]pi/GsQ3apuRt43V3XQq/tA==[/tex]及[tex=0.5x1.286]r65Ank8E1dV+BtDCLn5S+w==[/tex]阶矩阵[tex=0.786x1.286]q1djlrfSWHAqH21hBgtrSw==[/tex] 都可逆, 求(1)[tex=5.929x2.929]rwMhqGKFQ+j3l2qMx/grPmtqXebwM7lRAV7uUT8ea0FCL1MAiTkcIUmbpKZBtEflME05K6QZLyCpaaEi/cmy2NOaEElFekXmtlEtJzfu/3o=[/tex]; (2)[tex=5.929x2.929]rwMhqGKFQ+j3l2qMx/grPqH4onJbyJSuN9BDoj1IoCp3XXc+tuCZRRR1rFYfdwjr+mbUYeI53nhkQMNOXv1vJDNsBVTUq4z8ki3uzTpao7M=[/tex].

设[tex=0.643x0.786]/he/ol8BkDuTTL9yMPtH4Q==[/tex]阶矩阵[tex=0.786x1.0]b4HkKtHXeHofHX/gJc8Agg==[/tex]及[tex=0.929x0.786]VF0GLe2VBE/4VKNzpyOfFg==[/tex]阶矩阵[tex=0.786x1.0]sHo1pKm+gjxjcUAJjHrarQ==[/tex]都可逆，求:[br][/br][tex=5.929x2.929]jcCMHflCR8OS9TosV6N5vF5TBJ+hnWfKaPJMOj8+lW0ygKrP6wzvVGy4qDOEHs7MmQbphQ3QGPzl+GgH9R2nuUXdv9OFV78Y/zQ8LkM9gwU=[/tex]

设[tex=0.643x0.786]/he/ol8BkDuTTL9yMPtH4Q==[/tex]阶矩阵[tex=0.786x1.0]b4HkKtHXeHofHX/gJc8Agg==[/tex]及[tex=0.929x0.786]VF0GLe2VBE/4VKNzpyOfFg==[/tex]阶矩阵[tex=0.786x1.0]sHo1pKm+gjxjcUAJjHrarQ==[/tex]都可逆，求:[br][/br] [tex=5.929x2.929]jcCMHflCR8OS9TosV6N5vBtqjFrNFsn83APbaxuqgln63xB3nfahLwrMM85/LxtPiUi2rhRjG7dK5tvmUaNfzVRWRWHvWd+Bwo8bb86k1ZY=[/tex]

在以下各式中,极限存在,但不能用洛必达法则计算的是（   ）. 未知类型：{'options': ['[tex=3.857x2.571]ENxIatiC2yqgaopSQCG83qBDiD2e5haPNwrupN6QV/M93u5el/5KmOGZBAaaOxhk[/tex]', '[tex=5.929x2.929]ENxIatiC2yqgaopSQCG83jR820UCdMxOYf7fitRgZrGwhMYWiQKt7ZpDrFLI9jHh9GGXc+xWhxS+aoOLolK52A==[/tex]', '[tex=5.714x2.357]ENxIatiC2yqgaopSQCG83mnuGMqJb0xELb37sIo0Z2oObs1yOsHBcHINpSusRmUg2+tyYZFL+E4SxRDDRwZiNw==[/tex]', '[tex=3.786x2.429]ENxIatiC2yqgaopSQCG83nuYBIEeUdYCZUFWMv5pPGWSpNl4W9pBUzKYYZbERRtX8A9PurOJh665/Nrw1bbLQA==[/tex]'], 'type': 102}

下列变量组（）是一个闭回路。 A: {x，x，x，x，x，x} B: {x，x，x，x，x} C: {x，x，x，x，x，x} D: {x，x，x，x，x，x}

以下谓词蕴含式正确的是（）: (∀x) (A(x)→B(x))=>( ∀x)A(x)→(∀x)B(x)|(∀x) (A(x)↔B(x))=>( ∀x)A(x)↔(∀x)B(x)|(∀x)A(x)∨(∀x)B(x)=>( ∀x) (A(x)∨B(x))|(∃x) (A(x)∧B(x))=>(∃x)A(x)∧(∃x)B(x)

以下谓词蕴含式正确的是（）: (?x) (A(x)→B(x))=>( ?x)A(x)→(?x)B(x)|(?x) (A(x)?B(x))=>( ?x)A(x)?(?x)B(x)|(?x)A(x)∨(?x)B(x)=>( ?x) (A(x)∨B(x))|(?x) (A(x)∧B(x))=>(?x)A(x)∧(?x)B(x)