• 2022-06-26 问题

    试用代数判据确定具有下列特征方程的系统稳定性。[tex=12.286x1.357]I5rGWSg9KC95tbWjTldrAXsCJUc9ZD0oBhp2dys0jaM=[/tex]

    试用代数判据确定具有下列特征方程的系统稳定性。[tex=12.286x1.357]I5rGWSg9KC95tbWjTldrAXsCJUc9ZD0oBhp2dys0jaM=[/tex]

  • 2022-05-29 问题

    命名下列配合物:[tex=12.286x1.357]fRdb+sZtaxNcZIjNY6yymzrqRDRs/q0uG58xjeaEoV8csTqgeKR5fUsR0kAxxwoLNYp7Nd2GEBZduLfisLsOf+XBgQWP3vItVb2lsV4F/16ab5JV09hdUsdBZFyW39jI[/tex][input=type:blank,size:4][/input].

    命名下列配合物:[tex=12.286x1.357]fRdb+sZtaxNcZIjNY6yymzrqRDRs/q0uG58xjeaEoV8csTqgeKR5fUsR0kAxxwoLNYp7Nd2GEBZduLfisLsOf+XBgQWP3vItVb2lsV4F/16ab5JV09hdUsdBZFyW39jI[/tex][input=type:blank,size:4][/input].

  • 2022-07-23 问题

    证明在格中成立[tex=12.286x1.357]eM7HfHwIRPcxw515nIok5o/fBSbMYhy3/6uIb0+wA+6+rAmdoPl8ChpC17YjWVqvAheUILeLoa9t5Agse9vvjigSPUFeKCEp8MrAaUpES9o=[/tex]和[tex=18.929x1.357]eM7HfHwIRPcxw515nIok5lkp4X5momZoeoiTUFMd65fme14tNiq1Gqym+3oMbvMlbjYjFjPsyoamdr+k9497Nz+NFsFkqwz+suyDuBNY8A+J6XW4V0wo/nuI8ZFCwAJDKClcwapPTOhDF+c5rVaZL0iARVbwgUdRPKvMuPnpnEQ=[/tex]

    证明在格中成立[tex=12.286x1.357]eM7HfHwIRPcxw515nIok5o/fBSbMYhy3/6uIb0+wA+6+rAmdoPl8ChpC17YjWVqvAheUILeLoa9t5Agse9vvjigSPUFeKCEp8MrAaUpES9o=[/tex]和[tex=18.929x1.357]eM7HfHwIRPcxw515nIok5lkp4X5momZoeoiTUFMd65fme14tNiq1Gqym+3oMbvMlbjYjFjPsyoamdr+k9497Nz+NFsFkqwz+suyDuBNY8A+J6XW4V0wo/nuI8ZFCwAJDKClcwapPTOhDF+c5rVaZL0iARVbwgUdRPKvMuPnpnEQ=[/tex]

  • 2022-06-03 问题

    指出下列函数中哪些是周期函数并求出它们的周期.[tex=12.286x1.357]WuDtQe1ubto/TSJXLjC5xZplOB/+0Qd1cWI00+5cyAKY0R0htIqBvE30cVfhTAOB[/tex][tex=16.857x1.357]rcUbQ43VbCaRczao2jIfXT3GJg8VpicIMZ19ATgQMbTyPET4JqeMop5jcAiviQXq06U+AZWiIeY5KcDS3i54IQ==[/tex]

    指出下列函数中哪些是周期函数并求出它们的周期.[tex=12.286x1.357]WuDtQe1ubto/TSJXLjC5xZplOB/+0Qd1cWI00+5cyAKY0R0htIqBvE30cVfhTAOB[/tex][tex=16.857x1.357]rcUbQ43VbCaRczao2jIfXT3GJg8VpicIMZ19ATgQMbTyPET4JqeMop5jcAiviQXq06U+AZWiIeY5KcDS3i54IQ==[/tex]

  • 2022-06-15 问题

    用z变换方法求解下列差分方程,结果以[tex=1.857x1.357]51wg5MiJCu5250mmpnBBIQ==[/tex]表示。[tex=15.857x1.357]r2kNCUohMb/VQdO0Rf3XAjrThvtcbMY+qwHsZT+GKLxlTpO3NRxSe2mRR7fd8Nt1[/tex][tex=12.286x1.357]VVMur1OpiRSrOVO9IOOavCNkencM+gb9XK32qTZ1TZA=[/tex]

    用z变换方法求解下列差分方程,结果以[tex=1.857x1.357]51wg5MiJCu5250mmpnBBIQ==[/tex]表示。[tex=15.857x1.357]r2kNCUohMb/VQdO0Rf3XAjrThvtcbMY+qwHsZT+GKLxlTpO3NRxSe2mRR7fd8Nt1[/tex][tex=12.286x1.357]VVMur1OpiRSrOVO9IOOavCNkencM+gb9XK32qTZ1TZA=[/tex]

  • 2022-06-11 问题

    试给出[tex=0.786x1.0]b4HkKtHXeHofHX/gJc8Agg==[/tex] 利 [tex=0.786x1.0]sHo1pKm+gjxjcUAJjHrarQ==[/tex] 的例子,使得 [tex=4.786x1.143]oolPjzXrPI/D//RCCyYoplPb5t0hCsG6hUCUK4V5UUU=[/tex] 且 [br][/br][tex=12.286x1.357]ccwvYoOxdlb+iIXyDwUkj+iRYsdU1C5DQOH48hOGCkJ5Pp+PzdxG7EkRXZcL54VE[/tex]

    试给出[tex=0.786x1.0]b4HkKtHXeHofHX/gJc8Agg==[/tex] 利 [tex=0.786x1.0]sHo1pKm+gjxjcUAJjHrarQ==[/tex] 的例子,使得 [tex=4.786x1.143]oolPjzXrPI/D//RCCyYoplPb5t0hCsG6hUCUK4V5UUU=[/tex] 且 [br][/br][tex=12.286x1.357]ccwvYoOxdlb+iIXyDwUkj+iRYsdU1C5DQOH48hOGCkJ5Pp+PzdxG7EkRXZcL54VE[/tex]

  • 2022-07-23 问题

    对下列各题分别证明 G 是否为[tex=5.5x1.214]XBGLPX/yp+xIY07Bc54iEKH/gBVSPW0FPQXJoGUgT2VqEaSZlK+hxFNadI6HRjxR[/tex] 的逻辑结论:[tex=12.286x1.357]c/9LBlZ9jczl7BHdy0MeCfO/YH46MKXiWWF6Gu6Xlt12TkZbsEJbrlmXujv5BGdJ[/tex][br][/br][tex=9.0x1.357]UW+HUHdNWDBZYluBtefC0h8oPvbrizLmuQJaWrNVKe8=[/tex] 

    对下列各题分别证明 G 是否为[tex=5.5x1.214]XBGLPX/yp+xIY07Bc54iEKH/gBVSPW0FPQXJoGUgT2VqEaSZlK+hxFNadI6HRjxR[/tex] 的逻辑结论:[tex=12.286x1.357]c/9LBlZ9jczl7BHdy0MeCfO/YH46MKXiWWF6Gu6Xlt12TkZbsEJbrlmXujv5BGdJ[/tex][br][/br][tex=9.0x1.357]UW+HUHdNWDBZYluBtefC0h8oPvbrizLmuQJaWrNVKe8=[/tex] 

  • 2022-06-17 问题

    求下列公式的析取范式、合取范式及主析取范式、主合取范式,并根据主析(合)取范式直接确定该公式的弄真指派和弄假指派.[tex=12.286x1.357]G2SzzfWYOiiVJanDm2xSYTpkGbbG+Q2DCN0ppl+eO2HAakLzNcjErH135Fz89yOqYwIqbt4WUTaxDbDEzNZRSijRsLQCyZF7LKCy0WOuTTM=[/tex]

    求下列公式的析取范式、合取范式及主析取范式、主合取范式,并根据主析(合)取范式直接确定该公式的弄真指派和弄假指派.[tex=12.286x1.357]G2SzzfWYOiiVJanDm2xSYTpkGbbG+Q2DCN0ppl+eO2HAakLzNcjErH135Fz89yOqYwIqbt4WUTaxDbDEzNZRSijRsLQCyZF7LKCy0WOuTTM=[/tex]

  • 2022-06-16 问题

    已知矢量场 [tex=12.286x1.357]EP27b9nOQb8RVZcbuxhJ/DCwRdYNt3G1CZ6wo5hHpiKxp4XmsnoTqxRC4nELDrACssBkwAsc7pvxLr3sctQNKBTUh6jLqLEMnmnG8RTLCw8dWKpKHZa65RfsXnUM1I23AgUjgVHUaIGRDQzcg1AA3Q==[/tex], 计算以下积分并验证斯托克斯定理:如图所示路径计算积分 [tex=3.286x3.571]06g3BpFKmQFsCRCugByKarh4vSuXRUmbfdB0aeicE+ukPISp/1Y3MFJ7BmqJsl38rXQ5rrIBSRpweZ12MJNZQw==[/tex] 和 [tex=6.714x3.571]rh4f21Nu6M4G6ubpt2kzyTs5h4Lew1jlSa3adAJ4QP1qalXHUL/WWULwZREyjwGuhCsLBvqeZv3aYS09HU81heN2UBpDTcBp3w230ePnsRQ=[/tex]。[img=210x210]17a88ee9adbd059.png[/img]

    已知矢量场 [tex=12.286x1.357]EP27b9nOQb8RVZcbuxhJ/DCwRdYNt3G1CZ6wo5hHpiKxp4XmsnoTqxRC4nELDrACssBkwAsc7pvxLr3sctQNKBTUh6jLqLEMnmnG8RTLCw8dWKpKHZa65RfsXnUM1I23AgUjgVHUaIGRDQzcg1AA3Q==[/tex], 计算以下积分并验证斯托克斯定理:如图所示路径计算积分 [tex=3.286x3.571]06g3BpFKmQFsCRCugByKarh4vSuXRUmbfdB0aeicE+ukPISp/1Y3MFJ7BmqJsl38rXQ5rrIBSRpweZ12MJNZQw==[/tex] 和 [tex=6.714x3.571]rh4f21Nu6M4G6ubpt2kzyTs5h4Lew1jlSa3adAJ4QP1qalXHUL/WWULwZREyjwGuhCsLBvqeZv3aYS09HU81heN2UBpDTcBp3w230ePnsRQ=[/tex]。[img=210x210]17a88ee9adbd059.png[/img]

  • 2022-06-28 问题

    在下述等式中, 正确的是 未知类型:{'options': ['[tex=12.143x1.357]PQJR9GW1Gn6j58L3+j7SX8daNZYERMlFep2y/7fsKmmnumlernM1fg2D2YV1nvfo0UWUFnir1W6yz6keyuYss1FaHJJA5eJGCOuBUb1SHn9W80zrZHGiW9y0smQ9a4SY43KmOrKP9VPyJf9pd+7CVw==[/tex]', '[tex=12.286x1.357]PQJR9GW1Gn6j58L3+j7SX8daNZYERMlFep2y/7fsKml4M/au7OrZn30dW+KJrJW2HsyumVfCUUrydbbcT4oZzgbVg+3mWton1t+fHJD3hJ+IjGLBZk5o4NN/7F1Q1Hi0Qm458JzUQNG1U94hWgoItg==[/tex]', '[tex=12.214x1.357]PQJR9GW1Gn6j58L3+j7SX8daNZYERMlFep2y/7fsKmmnumlernM1fg2D2YV1nvfo0UWUFnir1W6yz6keyuYss1FaHJJA5eJGCOuBUb1SHn9W0hQ77CvGgjChH3EQFH6YqqZu8Bky0LA3NUYc5+Af3w==[/tex]', '[tex=12.357x1.357]PQJR9GW1Gn6j58L3+j7SX8daNZYERMlFep2y/7fsKml4M/au7OrZn30dW+KJrJW2HsyumVfCUUrydbbcT4oZzgbVg+3mWton1t+fHJD3hJ8YaSfpbYvLi2d6854/kzpbjEt3rVaH68glJCmEhslaPg==[/tex]'], 'type': 102}

    在下述等式中, 正确的是 未知类型:{'options': ['[tex=12.143x1.357]PQJR9GW1Gn6j58L3+j7SX8daNZYERMlFep2y/7fsKmmnumlernM1fg2D2YV1nvfo0UWUFnir1W6yz6keyuYss1FaHJJA5eJGCOuBUb1SHn9W80zrZHGiW9y0smQ9a4SY43KmOrKP9VPyJf9pd+7CVw==[/tex]', '[tex=12.286x1.357]PQJR9GW1Gn6j58L3+j7SX8daNZYERMlFep2y/7fsKml4M/au7OrZn30dW+KJrJW2HsyumVfCUUrydbbcT4oZzgbVg+3mWton1t+fHJD3hJ+IjGLBZk5o4NN/7F1Q1Hi0Qm458JzUQNG1U94hWgoItg==[/tex]', '[tex=12.214x1.357]PQJR9GW1Gn6j58L3+j7SX8daNZYERMlFep2y/7fsKmmnumlernM1fg2D2YV1nvfo0UWUFnir1W6yz6keyuYss1FaHJJA5eJGCOuBUb1SHn9W0hQ77CvGgjChH3EQFH6YqqZu8Bky0LA3NUYc5+Af3w==[/tex]', '[tex=12.357x1.357]PQJR9GW1Gn6j58L3+j7SX8daNZYERMlFep2y/7fsKml4M/au7OrZn30dW+KJrJW2HsyumVfCUUrydbbcT4oZzgbVg+3mWton1t+fHJD3hJ8YaSfpbYvLi2d6854/kzpbjEt3rVaH68glJCmEhslaPg==[/tex]'], 'type': 102}

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