计算下列外积:[tex=16.714x1.357]m9xDFcUG3M2RK6lXuV6y2ttxEds46EAjyk6MVNie2vMsKmRWFkpi4O6IcaqHjTjx/ZOi4r/rzWET+t2MI0t2Ag==[/tex]
计算下列外积:[tex=16.714x1.357]m9xDFcUG3M2RK6lXuV6y2ttxEds46EAjyk6MVNie2vMsKmRWFkpi4O6IcaqHjTjx/ZOi4r/rzWET+t2MI0t2Ag==[/tex]
证明雅可比 (Jacobi) 恒等式(Jacobi)[tex=16.714x1.357]mYudu4hCS+Lfb4CA1kmzumFbghLsw5kzB6msI2xFYZIOya2O6YO5oBvayoMeGkyvQBmSdvS+0tKsm7wakPUl0zDOSgajKsdFMMkby1YnL4s=[/tex].
证明雅可比 (Jacobi) 恒等式(Jacobi)[tex=16.714x1.357]mYudu4hCS+Lfb4CA1kmzumFbghLsw5kzB6msI2xFYZIOya2O6YO5oBvayoMeGkyvQBmSdvS+0tKsm7wakPUl0zDOSgajKsdFMMkby1YnL4s=[/tex].
已知二阶因果离散系统的差分方程为[tex=16.714x1.357]l41q5Fy7OqWMh1KHd7+ma9zAYAIvVPeCf0iMXmYI0hSipIRNLlh8309xH9ZatmUp[/tex]画出系统的模拟框图。
已知二阶因果离散系统的差分方程为[tex=16.714x1.357]l41q5Fy7OqWMh1KHd7+ma9zAYAIvVPeCf0iMXmYI0hSipIRNLlh8309xH9ZatmUp[/tex]画出系统的模拟框图。
求证: 对于[tex=4.929x1.214]/+gDsj1Fh24ZDJ6KDOXIb6h9gVmlnN8/xyJojb/Sql4=[/tex]有[tex=16.714x1.357]0pANN1SVkCE/Lw6FMZG+REMRXQ+E9riNVO0rz5YIaKBFggBIj7YkbBbqE4dkkBnYHnCGZ0vl790Zu0ipMz2bymNdaET37F65ReAG7eDV4mAWWmNltbXm9a+mxpvXdalHnQilAgYd4RVtq/O55jdsAw==[/tex], [tex=13.786x1.357]0xBVfUtQ+9UL0Lb3fYOdobMKjmG5laDzjQo1eHuEnFvb2P9dP6yxxERoE88m+oV2p1nq/XF7XWyJuj57WUgyOuMVX1agfXGanqJyAQBkT5ilJRuOd6MVG8sSinsBzKUW[/tex].
求证: 对于[tex=4.929x1.214]/+gDsj1Fh24ZDJ6KDOXIb6h9gVmlnN8/xyJojb/Sql4=[/tex]有[tex=16.714x1.357]0pANN1SVkCE/Lw6FMZG+REMRXQ+E9riNVO0rz5YIaKBFggBIj7YkbBbqE4dkkBnYHnCGZ0vl790Zu0ipMz2bymNdaET37F65ReAG7eDV4mAWWmNltbXm9a+mxpvXdalHnQilAgYd4RVtq/O55jdsAw==[/tex], [tex=13.786x1.357]0xBVfUtQ+9UL0Lb3fYOdobMKjmG5laDzjQo1eHuEnFvb2P9dP6yxxERoE88m+oV2p1nq/XF7XWyJuj57WUgyOuMVX1agfXGanqJyAQBkT5ilJRuOd6MVG8sSinsBzKUW[/tex].
试写出[tex=0.786x1.0]AOSTmhvIsOwsdZlGoks7dg==[/tex]中的等价关系[tex=0.786x1.0]59uVln8a2zRyv0n5hgPyQg==[/tex],它使得[tex=16.714x1.357]VK+AMJPs+DN4gLpG/kLFlGHaWCzUYj6dFEm/pOAIa/KjbBFwPFE3zW/8EmLlzcLFJBzU9hhgg2+SsIGP9f9gNg==[/tex]。
试写出[tex=0.786x1.0]AOSTmhvIsOwsdZlGoks7dg==[/tex]中的等价关系[tex=0.786x1.0]59uVln8a2zRyv0n5hgPyQg==[/tex],它使得[tex=16.714x1.357]VK+AMJPs+DN4gLpG/kLFlGHaWCzUYj6dFEm/pOAIa/KjbBFwPFE3zW/8EmLlzcLFJBzU9hhgg2+SsIGP9f9gNg==[/tex]。
设[tex=0.714x1.0]VkfVn2nqVgRpP58Qb+BUWQ==[/tex],[tex=1.357x1.214]hje+44pTBmSE2inkpKUcRg==[/tex],[tex=1.357x1.214]ztgeeoEuax7xCxL39pAmeA==[/tex]都是域[tex=0.786x1.286]BlkXDnmzWHxe4M6E9LlofQ==[/tex]上线性空间[tex=0.857x1.286]ZpwhzmyivskaH5M1X7ozaQ==[/tex]的子空间,证明:[tex=16.714x1.357]n16PaK/ZPpdX+SqWLpR0qU4eCJSwDMg7HjElIwfdrEAOhkzonnwZC9mHyVOLXCCnmVOfBivNa9h4C+VDC/Ock/L5idbFfvo2lIZU6rCzyBxIb5DHbnaFrbgcGig95WWy[/tex]。
设[tex=0.714x1.0]VkfVn2nqVgRpP58Qb+BUWQ==[/tex],[tex=1.357x1.214]hje+44pTBmSE2inkpKUcRg==[/tex],[tex=1.357x1.214]ztgeeoEuax7xCxL39pAmeA==[/tex]都是域[tex=0.786x1.286]BlkXDnmzWHxe4M6E9LlofQ==[/tex]上线性空间[tex=0.857x1.286]ZpwhzmyivskaH5M1X7ozaQ==[/tex]的子空间,证明:[tex=16.714x1.357]n16PaK/ZPpdX+SqWLpR0qU4eCJSwDMg7HjElIwfdrEAOhkzonnwZC9mHyVOLXCCnmVOfBivNa9h4C+VDC/Ock/L5idbFfvo2lIZU6rCzyBxIb5DHbnaFrbgcGig95WWy[/tex]。
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}
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)
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)
下列式中错误的是: A: (∀x)(A(x)Úp(x)) Û (∀x)A(x)Ú (∀x)p(x) B: ($x)A(x) Ù p Û ($x)(A(x) Ù p ) C: (∀x)(A(x)ÚB(x)) Þ (∀x)A(x)Ú( ∀x)B(x) D: ($x)(A(x)ÙB(x)) Þ ($x)A(x)Ù( $x)B(x)
下列式中错误的是: A: (∀x)(A(x)Úp(x)) Û (∀x)A(x)Ú (∀x)p(x) B: ($x)A(x) Ù p Û ($x)(A(x) Ù p ) C: (∀x)(A(x)ÚB(x)) Þ (∀x)A(x)Ú( ∀x)B(x) D: ($x)(A(x)ÙB(x)) Þ ($x)A(x)Ù( $x)B(x)