• 2022-06-18 问题

    [color=#000000]试确定下列函数的终值:[/color][tex=9.786x2.786]+s1GKcmMwuL99rk5AxOjnDbwxWNkgvIIP0dkLoTXdPbgKVxWv0d6zlQumsw0xodq[/tex]

    [color=#000000]试确定下列函数的终值:[/color][tex=9.786x2.786]+s1GKcmMwuL99rk5AxOjnDbwxWNkgvIIP0dkLoTXdPbgKVxWv0d6zlQumsw0xodq[/tex]

  • 2022-07-02 问题

    下列关于副反应系数的定义正确的是 未知类型:{'options': ['[tex=10.786x2.786]nzhYuLo6BE2xhvAMpytX4apJ7oCzbchikYARrJQfNw7Av73leUY36mv44jHw2jeR4DrEnwX9DBQzBVjVXwJqnnMTEZn+G2gkbQj0xNp4Hb8Lxxkte2iZBUrZvDVEo5N/y0xHmOG4+LNdK6Yo0wcEdL8JubRjE/aQ19Rcaw9+XYHODa3zR6h38A64unc3Z8jpfeHdjyBg7ZzVwz179WaI3YxmrlVIpK4N45FhAYN+d2U=[/tex]', '[tex=10.929x2.714]AXfbFLoD6dX/q87JnBx/VHk2zOT2IhIw2RkiYmHzlIMl6O1h2DqZUw+nD9rbFiYvnoPCSLmyfVQma/taOs33qE/lYA0sVgmOVpkq3bOp1djf5cNxhoBe4IFKavKLiNs5ZFvyn88ktc2gUmaKBlJCPg==[/tex]', '[tex=9.786x2.786]nzhYuLo6BE2xhvAMpytX4eKWzbynNi1NKnDV9jhqCDuRmEOJug08MCLIWVVzLyl+QKPOKE5Bw78LetbMZi5n2z+Iq7fn6u/EVROfuAvFNk8wP10qX/A9zK6Es80YwDNWKM/gT8AirJ7G6Zsr4KTI2jtsXJS8mEIiw9i2BZYgiHBTeLir1TihGMKVIS+uhp/sAlf+jUa6zi6f0+gbxyROcN19nzytO3EiUMDkRo6mWQU=[/tex]', '[tex=9.786x2.786]nzhYuLo6BE2xhvAMpytX4eKWzbynNi1NKnDV9jhqCDsfRMjnnvArRRaObMYKIy6N1VoEmHabkoZB7jbx7ELFFsDOZ8wieH+3sa3evw5omOz2WBrvixKYL5N/NWN2efTueFJLnTC4wr5OgE2fVlrMm0N/T7zTC7frM1SB5tnRDIi59maya51oG5Y7FsHzoJrV1Xm9TFv+wCrSENHwSOncxtM3Cw8HHt6iet7VVyg2Mbg=[/tex]'], 'type': 102}

    下列关于副反应系数的定义正确的是 未知类型:{'options': ['[tex=10.786x2.786]nzhYuLo6BE2xhvAMpytX4apJ7oCzbchikYARrJQfNw7Av73leUY36mv44jHw2jeR4DrEnwX9DBQzBVjVXwJqnnMTEZn+G2gkbQj0xNp4Hb8Lxxkte2iZBUrZvDVEo5N/y0xHmOG4+LNdK6Yo0wcEdL8JubRjE/aQ19Rcaw9+XYHODa3zR6h38A64unc3Z8jpfeHdjyBg7ZzVwz179WaI3YxmrlVIpK4N45FhAYN+d2U=[/tex]', '[tex=10.929x2.714]AXfbFLoD6dX/q87JnBx/VHk2zOT2IhIw2RkiYmHzlIMl6O1h2DqZUw+nD9rbFiYvnoPCSLmyfVQma/taOs33qE/lYA0sVgmOVpkq3bOp1djf5cNxhoBe4IFKavKLiNs5ZFvyn88ktc2gUmaKBlJCPg==[/tex]', '[tex=9.786x2.786]nzhYuLo6BE2xhvAMpytX4eKWzbynNi1NKnDV9jhqCDuRmEOJug08MCLIWVVzLyl+QKPOKE5Bw78LetbMZi5n2z+Iq7fn6u/EVROfuAvFNk8wP10qX/A9zK6Es80YwDNWKM/gT8AirJ7G6Zsr4KTI2jtsXJS8mEIiw9i2BZYgiHBTeLir1TihGMKVIS+uhp/sAlf+jUa6zi6f0+gbxyROcN19nzytO3EiUMDkRo6mWQU=[/tex]', '[tex=9.786x2.786]nzhYuLo6BE2xhvAMpytX4eKWzbynNi1NKnDV9jhqCDsfRMjnnvArRRaObMYKIy6N1VoEmHabkoZB7jbx7ELFFsDOZ8wieH+3sa3evw5omOz2WBrvixKYL5N/NWN2efTueFJLnTC4wr5OgE2fVlrMm0N/T7zTC7frM1SB5tnRDIi59maya51oG5Y7FsHzoJrV1Xm9TFv+wCrSENHwSOncxtM3Cw8HHt6iet7VVyg2Mbg=[/tex]'], 'type': 102}

  • 2022-07-29 问题

    下列关于副反应系数的定义正确的是 未知类型:{'options': ['[tex=10.786x2.786]nzhYuLo6BE2xhvAMpytX4apJ7oCzbchikYARrJQfNw7Av73leUY36mv44jHw2jeR4DrEnwX9DBQzBVjVXwJqnnMTEZn+G2gkbQj0xNp4Hb8Lxxkte2iZBUrZvDVEo5N/y0xHmOG4+LNdK6Yo0wcEdL8JubRjE/aQ19Rcaw9+XYHODa3zR6h38A64unc3Z8jpfeHdjyBg7ZzVwz179WaI3YxmrlVIpK4N45FhAYN+d2U=[/tex]', '[tex=10.929x2.714]AXfbFLoD6dX/q87JnBx/VHk2zOT2IhIw2RkiYmHzlIMl6O1h2DqZUw+nD9rbFiYvnoPCSLmyfVQma/taOs33qE/lYA0sVgmOVpkq3bOp1djf5cNxhoBe4IFKavKLiNs5ZFvyn88ktc2gUmaKBlJCPg==[/tex]', '[tex=9.786x2.786]nzhYuLo6BE2xhvAMpytX4eKWzbynNi1NKnDV9jhqCDuRmEOJug08MCLIWVVzLyl+QKPOKE5Bw78LetbMZi5n2z+Iq7fn6u/EVROfuAvFNk8wP10qX/A9zK6Es80YwDNWKM/gT8AirJ7G6Zsr4KTI2jtsXJS8mEIiw9i2BZYgiHBTeLir1TihGMKVIS+uhp/sAlf+jUa6zi6f0+gbxyROcN19nzytO3EiUMDkRo6mWQU=[/tex]', '[tex=9.786x2.786]nzhYuLo6BE2xhvAMpytX4eKWzbynNi1NKnDV9jhqCDsfRMjnnvArRRaObMYKIy6N1VoEmHabkoZB7jbx7ELFFsDOZ8wieH+3sa3evw5omOz2WBrvixKYL5N/NWN2efTueFJLnTC4wr5OgE2fVlrMm0N/T7zTC7frM1SB5tnRDIi59maya51oG5Y7FsHzoJrV1Xm9TFv+wCrSENHwSOncxtM3Cw8HHt6iet7VVyg2Mbg=[/tex]'], 'type': 102}

    下列关于副反应系数的定义正确的是 未知类型:{'options': ['[tex=10.786x2.786]nzhYuLo6BE2xhvAMpytX4apJ7oCzbchikYARrJQfNw7Av73leUY36mv44jHw2jeR4DrEnwX9DBQzBVjVXwJqnnMTEZn+G2gkbQj0xNp4Hb8Lxxkte2iZBUrZvDVEo5N/y0xHmOG4+LNdK6Yo0wcEdL8JubRjE/aQ19Rcaw9+XYHODa3zR6h38A64unc3Z8jpfeHdjyBg7ZzVwz179WaI3YxmrlVIpK4N45FhAYN+d2U=[/tex]', '[tex=10.929x2.714]AXfbFLoD6dX/q87JnBx/VHk2zOT2IhIw2RkiYmHzlIMl6O1h2DqZUw+nD9rbFiYvnoPCSLmyfVQma/taOs33qE/lYA0sVgmOVpkq3bOp1djf5cNxhoBe4IFKavKLiNs5ZFvyn88ktc2gUmaKBlJCPg==[/tex]', '[tex=9.786x2.786]nzhYuLo6BE2xhvAMpytX4eKWzbynNi1NKnDV9jhqCDuRmEOJug08MCLIWVVzLyl+QKPOKE5Bw78LetbMZi5n2z+Iq7fn6u/EVROfuAvFNk8wP10qX/A9zK6Es80YwDNWKM/gT8AirJ7G6Zsr4KTI2jtsXJS8mEIiw9i2BZYgiHBTeLir1TihGMKVIS+uhp/sAlf+jUa6zi6f0+gbxyROcN19nzytO3EiUMDkRo6mWQU=[/tex]', '[tex=9.786x2.786]nzhYuLo6BE2xhvAMpytX4eKWzbynNi1NKnDV9jhqCDsfRMjnnvArRRaObMYKIy6N1VoEmHabkoZB7jbx7ELFFsDOZ8wieH+3sa3evw5omOz2WBrvixKYL5N/NWN2efTueFJLnTC4wr5OgE2fVlrMm0N/T7zTC7frM1SB5tnRDIi59maya51oG5Y7FsHzoJrV1Xm9TFv+wCrSENHwSOncxtM3Cw8HHt6iet7VVyg2Mbg=[/tex]'], 'type': 102}

  • 2022-05-27 问题

    证明:由所有形如[p=align:center][tex=9.786x2.786]rwMhqGKFQ+j3l2qMx/grPgJR6Zbj6nhfnfTg+dhaD9grr6GBjzr4HW/ONUF7KN77MNC+3qoT1cOiu7mY70oEiMefDf8m9jA3/fGJnioQgM1hxXSYg9iWS6UOGl2KPmBy[/tex]的矩阵组成的集合关于矩阵的加法与乘法构成一个无单位元的环

    证明:由所有形如[p=align:center][tex=9.786x2.786]rwMhqGKFQ+j3l2qMx/grPgJR6Zbj6nhfnfTg+dhaD9grr6GBjzr4HW/ONUF7KN77MNC+3qoT1cOiu7mY70oEiMefDf8m9jA3/fGJnioQgM1hxXSYg9iWS6UOGl2KPmBy[/tex]的矩阵组成的集合关于矩阵的加法与乘法构成一个无单位元的环

  • 2022-07-23 问题

    计算下列积分的值. [tex=0.714x1.0]YiLkHgl7MlxE+QjUplQUKA==[/tex]为由[tex=3.071x1.143]fMZAWLN92hfeusjbot5s5g==[/tex]和[tex=3.0x1.214]E7sPOleL/46hoHosj10jYQ==[/tex]所围矩形边界正向:[tex=9.786x2.786]FE2emU4+moBspjp3OOFOx8MrqyT3ut+0VHxUql1AIaD7OqXB9+1efqFwXuvNRszbmnbD8QrwaljpImVLxAZQ2sUubx5GJRPJd8puAgEE6J4jCcCDqCuOm3CUVoI7tJFG[/tex].(见图3.20)[img=304x252]178c8d399bbe2cf.png[/img]

    计算下列积分的值. [tex=0.714x1.0]YiLkHgl7MlxE+QjUplQUKA==[/tex]为由[tex=3.071x1.143]fMZAWLN92hfeusjbot5s5g==[/tex]和[tex=3.0x1.214]E7sPOleL/46hoHosj10jYQ==[/tex]所围矩形边界正向:[tex=9.786x2.786]FE2emU4+moBspjp3OOFOx8MrqyT3ut+0VHxUql1AIaD7OqXB9+1efqFwXuvNRszbmnbD8QrwaljpImVLxAZQ2sUubx5GJRPJd8puAgEE6J4jCcCDqCuOm3CUVoI7tJFG[/tex].(见图3.20)[img=304x252]178c8d399bbe2cf.png[/img]

  • 2022-06-30 问题

    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}

  • 2021-04-14 问题

    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)

  • 2021-04-14 问题

    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)

  • 2022-06-29 问题

    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)

  • 2022-06-25 问题

    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)

    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)

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