设[tex=19.571x2.786]uaGqE0RpAfI8W2VlBZuEjayc14kpPdPrvWgsY0BTd+GJBBgbWsz6CyBEQ+8LQGpkxYm9L5R6xBEVNd74+q0cCw/uuIOstDF0l800oAGD9rHWCWyvxGyz/wLUGb0VJep6[/tex]，计算[tex=18.786x1.357]hBVuIITHXMhxaBlfIRXJy9+mdbDMJztbON19TVz4snC/tdJn9iKxJXmvN03hpGWl02zFD/sAq6pctmmyJvUl4A==[/tex]

描述核外电子空间运动状态的下列哪一套量子数是不可能存在的?[tex=19.143x1.357]CeOWlpLvH8Qhk/RmfIvBHSjHC1r6eEYME095Ha6dUWOn6bk4K5Qm5dYq8JBCNJvWsouImBW9AxTVSeRhq6vNH7ToqNu+xLSwIFP0dhg3iVhwrQPuZwS4tIFr1SQZqdV5[/tex][tex=18.786x1.357]CeOWlpLvH8Qhk/RmfIvBHZIKeVmjyd6AncoQnBDyosUVX6xV7WagZXxB4Tdt5NNZwcf+607ySWSRXZKupm2+EdabpR/xRCPStJazkNZd8w9zmq8xDKC5vzNwn00Rvmle[/tex]

某品体管的[tex=18.786x1.357]1yOtLvuch0W66XRW6DNwQQRUoVF+xMPmq00u8sV05JwCmHWLlTM+IWyNhHVnlWES2bfGsuy4rvztfrmHNd+mVA==[/tex]，试问在下述情况下，哪种是工作正常的: [tex=9.5x1.357]opZS2+R3tYrS8auYW6JfWQq80yUR8dPsWDcLXwoJQ0lHvcFousMeBNAw5iNuVvDh[/tex][tex=9.429x1.357]WrpIAdN5tVR0TS6iVt3ccw4qRFxg9vAVvHgUZ9Hn95GWSACGRcWhrEPAqtg19Tbk[/tex][tex=10.429x1.357]rFjhzRyWRwgIpORWJFYHjQ5wbsl1NnzmCvXR6oeP11v+aTlO5slDPFoZL/MN4ZfL[/tex]

设 [tex=2.0x1.214]vnzjVhyzo/NIhVUgFyjLlA==[/tex] 为 [tex=0.643x0.786]/he/ol8BkDuTTL9yMPtH4Q==[/tex] 阶实对称矩阵, 并用 [tex=4.286x1.357]k8gnd3ip1dL6yXc4rsO01dfEhUV0jbx1liaMNV+vSy0=[/tex] 分别表示 [tex=0.786x1.0]b4HkKtHXeHofHX/gJc8Agg==[/tex] 的正负 惯性指数. 求证: [tex=18.786x1.357]0CgmLXu71P/mogFaNrENDx7cQKqaMuqE7Xg9m6zeXS40p9GrmEPxPWHcrcCB8Ei+q4CiLSJdu+MKN5ZgA4pZ7f2x2V2e1BHWIRTW3cTYsGE=[/tex]

已 知序列[tex=18.786x1.357]37PLsI6XN625xBXB2fsS+UMhEYwB8SSzr9atlzzqE8oPVMz0MCUUNJu45Gt0VBG1NdaYDTSeieUVkmiEbnzbJoRjYbds8PlY8I3CNZiloTs=[/tex] ,试按[tex=2.0x1.0]ElMwEhvDeXSXnvtkG1vmMA==[/tex]对序列[tex=1.714x1.357]gRlxFR3X1ZNzyXUa5nDO5g==[/tex]分段，并分别利用重叠相加法与重叠保留法计算序列线性卷积[tex=6.214x1.357]ygnpawBG0SEGczeIoLG5O68xz3eAIMRjxDp0kYe4cxM=[/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}

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)

判断下列推证是否正确。 (∀x)(A(x)→B(x))⇔(∀x)(￢A(x)∨B(x)) ⇔(∀x)￢( A(x)∧￢B(x) ) ⇔￢(∃x) ( A(x)∧￢B(x) ) ⇔￢( (∃x)A(x)∧(∃x)￢B(x) ) ⇔￢(∃x)A(x)∨￢(∃x)￢B(x) ⇔￢(∃x)A(x)∨(∀x)B(x) ⇔(∃x)A(x)→(∀x)B(x)