• 2022-07-24 问题

    求下列运算结果。 [tex=17.071x1.357]uEVKn8N3fgDziF2KdLzx051EomxXnLV4dDcgDqGzMeYYQUdpl1K9f9lASDD9Be2X9rbLV9+guDYyd9HztRjCQ8bXYcnmHhjctLGFV9f1zMg=[/tex][br][/br]

    求下列运算结果。 [tex=17.071x1.357]uEVKn8N3fgDziF2KdLzx051EomxXnLV4dDcgDqGzMeYYQUdpl1K9f9lASDD9Be2X9rbLV9+guDYyd9HztRjCQ8bXYcnmHhjctLGFV9f1zMg=[/tex][br][/br]

  • 2022-05-27 问题

    设 [tex=14.357x1.429]+HNIZcMaSzNwCe0LO7bsUqRM4gxOkHThu0JmrBIU3wY3+V97Eyn011GY5nMnovHxlvfuYXbkWJPFXFinTp+XFSvukChv2cMx7naEhLXf4nHDuj+gEEYOcQrRObgQpwbFBHSeD1Mq+AmFef1+nQ8eFtvJqgasggWt6xVrq1SUBGy5zNHs0nFYTldnzsV8/4IW+6FG6lDXtoFjqG0oaVQVJQ==[/tex] 为准对角方阵,又 [tex=4.357x1.357]ZaMxGvkf5DrPnBSpRNBfDaIomP0z7fVPjSzeBZ3OuPk=[/tex] . 证明 [tex=17.071x1.357]Hy12kln5BWS6e/nYifqIO2YVgrPeKgKDPu3Q3wu7k5AL2tV+HEhH5QKlG9C1VTEkrwOHEGpH8do+Tk/aDkrOfsLnMTZUQ1nBuDrIQDR8lRCfnFPrQj+KCDBmhgY5NAKE/ZKvl+X3vTElHGYCLEPzS0KCQh3glGHT1XcgiGNb3ZHYmfM9JKJAN9jMjEvHLQpQi2yIfq8BNFe/xFL6ITaPdAvxrKJjpas+Fs+mt62jNwQ=[/tex].

    设 [tex=14.357x1.429]+HNIZcMaSzNwCe0LO7bsUqRM4gxOkHThu0JmrBIU3wY3+V97Eyn011GY5nMnovHxlvfuYXbkWJPFXFinTp+XFSvukChv2cMx7naEhLXf4nHDuj+gEEYOcQrRObgQpwbFBHSeD1Mq+AmFef1+nQ8eFtvJqgasggWt6xVrq1SUBGy5zNHs0nFYTldnzsV8/4IW+6FG6lDXtoFjqG0oaVQVJQ==[/tex] 为准对角方阵,又 [tex=4.357x1.357]ZaMxGvkf5DrPnBSpRNBfDaIomP0z7fVPjSzeBZ3OuPk=[/tex] . 证明 [tex=17.071x1.357]Hy12kln5BWS6e/nYifqIO2YVgrPeKgKDPu3Q3wu7k5AL2tV+HEhH5QKlG9C1VTEkrwOHEGpH8do+Tk/aDkrOfsLnMTZUQ1nBuDrIQDR8lRCfnFPrQj+KCDBmhgY5NAKE/ZKvl+X3vTElHGYCLEPzS0KCQh3glGHT1XcgiGNb3ZHYmfM9JKJAN9jMjEvHLQpQi2yIfq8BNFe/xFL6ITaPdAvxrKJjpas+Fs+mt62jNwQ=[/tex].

  • 2022-05-29 问题

    设A,B,C均为n阶矩阵,若由AB=AC能推出B=C,则A应满足()[tex=17.071x1.357]KFLjEEKUndELza/jfsvedZlhVwZhgfSd+4p6fCo9bUsfYZUunUKD3Hyi08hbCxYaoWTI7Mbt3N2MnYPHFV/mng==[/tex]

    设A,B,C均为n阶矩阵,若由AB=AC能推出B=C,则A应满足()[tex=17.071x1.357]KFLjEEKUndELza/jfsvedZlhVwZhgfSd+4p6fCo9bUsfYZUunUKD3Hyi08hbCxYaoWTI7Mbt3N2MnYPHFV/mng==[/tex]

  • 2022-06-12 问题

    给定 [tex=17.071x1.357]OMiIQRZVRgNAvJYSUhS7RJaS1HfByy6AQYx7S0ebJ7YvY6PEtT5mbpE/cQawNffcAVraCfDaDYnJdufyJ9ENDuf1n9GpsAfHiku6VrvjaBwyQhu4FrGlJTCxE0FsrSFJanSa/VbUZeeSLtajqdFYz7fONpvXFi5JebXAReuv5ZHIbQU+St8oFkynySx0265nwLtoUb4X28ZoEpnIdG/udAOb+aSsqHvix6ybpR+uPuTjbbaNRJw50PvMBCp8oioI[/tex]求证: [tex=11.429x1.357]rWWsiMcSDKVoPn27OZwhRZ9eavNBt2YvIBmU6muXOKUN1N9MQhJCK7/tdgwImPhKjivgQCCFHcn+457Ohx1xnA==[/tex], 其中 [tex=2.429x1.0]INP5v8PeGhVQw5CP9Z5DHQcNP3zIzYPcycvU93Tp1VI=[/tex] 表示要素投入的边际成本。

    给定 [tex=17.071x1.357]OMiIQRZVRgNAvJYSUhS7RJaS1HfByy6AQYx7S0ebJ7YvY6PEtT5mbpE/cQawNffcAVraCfDaDYnJdufyJ9ENDuf1n9GpsAfHiku6VrvjaBwyQhu4FrGlJTCxE0FsrSFJanSa/VbUZeeSLtajqdFYz7fONpvXFi5JebXAReuv5ZHIbQU+St8oFkynySx0265nwLtoUb4X28ZoEpnIdG/udAOb+aSsqHvix6ybpR+uPuTjbbaNRJw50PvMBCp8oioI[/tex]求证: [tex=11.429x1.357]rWWsiMcSDKVoPn27OZwhRZ9eavNBt2YvIBmU6muXOKUN1N9MQhJCK7/tdgwImPhKjivgQCCFHcn+457Ohx1xnA==[/tex], 其中 [tex=2.429x1.0]INP5v8PeGhVQw5CP9Z5DHQcNP3zIzYPcycvU93Tp1VI=[/tex] 表示要素投入的边际成本。

  • 2022-06-16 问题

    给定 [tex=17.071x1.357]OMiIQRZVRgNAvJYSUhS7RJaS1HfByy6AQYx7S0ebJ7YvY6PEtT5mbpE/cQawNffcAVraCfDaDYnJdufyJ9ENDuf1n9GpsAfHiku6VrvjaBwyQhu4FrGlJTCxE0FsrSFJanSa/VbUZeeSLtajqdFYz7fONpvXFi5JebXAReuv5ZHIbQU+St8oFkynySx0265nwLtoUb4X28ZoEpnIdG/udAOb+aSsqHvix6ybpR+uPuTjbbaNRJw50PvMBCp8oioI[/tex]求证: [tex=11.429x1.357]rWWsiMcSDKVoPn27OZwhRZ9eavNBt2YvIBmU6muXOKUN1N9MQhJCK7/tdgwImPhKjivgQCCFHcn+457Ohx1xnA==[/tex], 其中 [tex=2.429x1.0]INP5v8PeGhVQw5CP9Z5DHQcNP3zIzYPcycvU93Tp1VI=[/tex] 表示要素投入的边际成本。

    给定 [tex=17.071x1.357]OMiIQRZVRgNAvJYSUhS7RJaS1HfByy6AQYx7S0ebJ7YvY6PEtT5mbpE/cQawNffcAVraCfDaDYnJdufyJ9ENDuf1n9GpsAfHiku6VrvjaBwyQhu4FrGlJTCxE0FsrSFJanSa/VbUZeeSLtajqdFYz7fONpvXFi5JebXAReuv5ZHIbQU+St8oFkynySx0265nwLtoUb4X28ZoEpnIdG/udAOb+aSsqHvix6ybpR+uPuTjbbaNRJw50PvMBCp8oioI[/tex]求证: [tex=11.429x1.357]rWWsiMcSDKVoPn27OZwhRZ9eavNBt2YvIBmU6muXOKUN1N9MQhJCK7/tdgwImPhKjivgQCCFHcn+457Ohx1xnA==[/tex], 其中 [tex=2.429x1.0]INP5v8PeGhVQw5CP9Z5DHQcNP3zIzYPcycvU93Tp1VI=[/tex] 表示要素投入的边际成本。

  • 2022-06-12 问题

    给定 [tex=17.071x1.357]OMiIQRZVRgNAvJYSUhS7RJaS1HfByy6AQYx7S0ebJ7YvY6PEtT5mbpE/cQawNffcAVraCfDaDYnJdufyJ9ENDuf1n9GpsAfHiku6VrvjaBwyQhu4FrGlJTCxE0FsrSFJanSa/VbUZeeSLtajqdFYz7fONpvXFi5JebXAReuv5ZHIbQU+St8oFkynySx0265nwLtoUb4X28ZoEpnIdG/udAOb+aSsqHvix6ybpR+uPuTjbbaNRJw50PvMBCp8oioI[/tex]求证: [tex=11.429x1.357]rWWsiMcSDKVoPn27OZwhRZ9eavNBt2YvIBmU6muXOKUN1N9MQhJCK7/tdgwImPhKjivgQCCFHcn+457Ohx1xnA==[/tex], 其中 [tex=2.429x1.0]INP5v8PeGhVQw5CP9Z5DHQcNP3zIzYPcycvU93Tp1VI=[/tex] 表示要素投入的边际成本。

    给定 [tex=17.071x1.357]OMiIQRZVRgNAvJYSUhS7RJaS1HfByy6AQYx7S0ebJ7YvY6PEtT5mbpE/cQawNffcAVraCfDaDYnJdufyJ9ENDuf1n9GpsAfHiku6VrvjaBwyQhu4FrGlJTCxE0FsrSFJanSa/VbUZeeSLtajqdFYz7fONpvXFi5JebXAReuv5ZHIbQU+St8oFkynySx0265nwLtoUb4X28ZoEpnIdG/udAOb+aSsqHvix6ybpR+uPuTjbbaNRJw50PvMBCp8oioI[/tex]求证: [tex=11.429x1.357]rWWsiMcSDKVoPn27OZwhRZ9eavNBt2YvIBmU6muXOKUN1N9MQhJCK7/tdgwImPhKjivgQCCFHcn+457Ohx1xnA==[/tex], 其中 [tex=2.429x1.0]INP5v8PeGhVQw5CP9Z5DHQcNP3zIzYPcycvU93Tp1VI=[/tex] 表示要素投入的边际成本。

  • 2022-06-06 问题

    给定 [tex=17.071x1.357]OMiIQRZVRgNAvJYSUhS7RJaS1HfByy6AQYx7S0ebJ7YvY6PEtT5mbpE/cQawNffcAVraCfDaDYnJdufyJ9ENDuf1n9GpsAfHiku6VrvjaBwyQhu4FrGlJTCxE0FsrSFJanSa/VbUZeeSLtajqdFYz7fONpvXFi5JebXAReuv5ZHIbQU+St8oFkynySx0265nwLtoUb4X28ZoEpnIdG/udAOb+aSsqHvix6ybpR+uPuTjbbaNRJw50PvMBCp8oioI[/tex]求证: [tex=11.429x1.357]rWWsiMcSDKVoPn27OZwhRZ9eavNBt2YvIBmU6muXOKUN1N9MQhJCK7/tdgwImPhKjivgQCCFHcn+457Ohx1xnA==[/tex], 其中 [tex=2.429x1.0]INP5v8PeGhVQw5CP9Z5DHQcNP3zIzYPcycvU93Tp1VI=[/tex] 表示要素投入的边际成本。

    给定 [tex=17.071x1.357]OMiIQRZVRgNAvJYSUhS7RJaS1HfByy6AQYx7S0ebJ7YvY6PEtT5mbpE/cQawNffcAVraCfDaDYnJdufyJ9ENDuf1n9GpsAfHiku6VrvjaBwyQhu4FrGlJTCxE0FsrSFJanSa/VbUZeeSLtajqdFYz7fONpvXFi5JebXAReuv5ZHIbQU+St8oFkynySx0265nwLtoUb4X28ZoEpnIdG/udAOb+aSsqHvix6ybpR+uPuTjbbaNRJw50PvMBCp8oioI[/tex]求证: [tex=11.429x1.357]rWWsiMcSDKVoPn27OZwhRZ9eavNBt2YvIBmU6muXOKUN1N9MQhJCK7/tdgwImPhKjivgQCCFHcn+457Ohx1xnA==[/tex], 其中 [tex=2.429x1.0]INP5v8PeGhVQw5CP9Z5DHQcNP3zIzYPcycvU93Tp1VI=[/tex] 表示要素投入的边际成本。

  • 2022-05-28 问题

    如果条件F形为[tex=3.143x1.214]i+HnrdsB0AKNRzk/PFRdbnI7/a/nK0+uIh67QE0ZFjk=[/tex],[tex=1.0x1.214]+YwuiMe6yAQfqvj7OrmcrQ==[/tex] 仅涉及到[tex=1.143x1.214]S0SEBE9sIEDAjKvCuq8uBg==[/tex] 中的属性,[tex=1.0x1.214]rQDWj/vPNxubuAzlQk+prw==[/tex]仅涉及到[tex=1.143x1.214]0iqXiJaG0Ulv4Xp9l0zv2w==[/tex]中的属性,则有 未知类型:{'options': ['[tex=14.286x1.357]RUiFwySHDlO+XyWEjaOVvvhESYm+cuVbWMK9yneJ9nSZHlS6a3XSPyh2vGkd5drhqPShFjnmxBLIXg0ug2L1+ysL/FDrZQUVmXMu4ybxisq/WWWna3OjxvJHscU1Dzec/BsVj//EmdtD77yeX4/RIidsm78iboytpzCzY2PN8Q47dRyHtn7ebdd2tflbcdVS[/tex]', '[tex=17.071x1.357]RUiFwySHDlO+XyWEjaOVvvhESYm+cuVbWMK9yneJ9nSZHlS6a3XSPyh2vGkd5drhqPShFjnmxBLIXg0ug2L1+yYRa4AcJQ1ImzYY44/0qht6fuCTw1Cp6o72dIopFZMngHr/6wJ7o0+Ln98DK1BqiR4PzUB+huVB84lBOn/d7i5rI/BGu5HH6aIGSkySV6q9YFeVtQPfIuXfFiySA84m2w==[/tex]', '[tex=17.071x1.357]RUiFwySHDlO+XyWEjaOVvvhESYm+cuVbWMK9yneJ9nSZHlS6a3XSPyh2vGkd5drhqPShFjnmxBLIXg0ug2L1+x8QFksuwgRlNDyGqhpSP6ymgB6EjB1mDvIo4Ubh1zZJrv35Bea+psPZvAzgYhHnwCq9NHNNDRrF7j3p5/DT3uISrVUr4X9Q6srQRyeBQyhETsBH5AkQWMgDPvvDbR2Cng==[/tex]', '[tex=14.643x1.357]RUiFwySHDlO+XyWEjaOVvvhESYm+cuVbWMK9yneJ9nSZHlS6a3XSPyh2vGkd5drhqPShFjnmxBLIXg0ug2L1+5pW/3zCcHbwe2aj++X2jXqUvCp7F8dAiGH3OADphBzjgkKlzAnDlEZc22a3VZCpza0a5yr+Q4cUx9n5bx3t0p8siblvPRh7x0vKuMF2A3+v[/tex]'], 'type': 102}

    如果条件F形为[tex=3.143x1.214]i+HnrdsB0AKNRzk/PFRdbnI7/a/nK0+uIh67QE0ZFjk=[/tex],[tex=1.0x1.214]+YwuiMe6yAQfqvj7OrmcrQ==[/tex] 仅涉及到[tex=1.143x1.214]S0SEBE9sIEDAjKvCuq8uBg==[/tex] 中的属性,[tex=1.0x1.214]rQDWj/vPNxubuAzlQk+prw==[/tex]仅涉及到[tex=1.143x1.214]0iqXiJaG0Ulv4Xp9l0zv2w==[/tex]中的属性,则有 未知类型:{'options': ['[tex=14.286x1.357]RUiFwySHDlO+XyWEjaOVvvhESYm+cuVbWMK9yneJ9nSZHlS6a3XSPyh2vGkd5drhqPShFjnmxBLIXg0ug2L1+ysL/FDrZQUVmXMu4ybxisq/WWWna3OjxvJHscU1Dzec/BsVj//EmdtD77yeX4/RIidsm78iboytpzCzY2PN8Q47dRyHtn7ebdd2tflbcdVS[/tex]', '[tex=17.071x1.357]RUiFwySHDlO+XyWEjaOVvvhESYm+cuVbWMK9yneJ9nSZHlS6a3XSPyh2vGkd5drhqPShFjnmxBLIXg0ug2L1+yYRa4AcJQ1ImzYY44/0qht6fuCTw1Cp6o72dIopFZMngHr/6wJ7o0+Ln98DK1BqiR4PzUB+huVB84lBOn/d7i5rI/BGu5HH6aIGSkySV6q9YFeVtQPfIuXfFiySA84m2w==[/tex]', '[tex=17.071x1.357]RUiFwySHDlO+XyWEjaOVvvhESYm+cuVbWMK9yneJ9nSZHlS6a3XSPyh2vGkd5drhqPShFjnmxBLIXg0ug2L1+x8QFksuwgRlNDyGqhpSP6ymgB6EjB1mDvIo4Ubh1zZJrv35Bea+psPZvAzgYhHnwCq9NHNNDRrF7j3p5/DT3uISrVUr4X9Q6srQRyeBQyhETsBH5AkQWMgDPvvDbR2Cng==[/tex]', '[tex=14.643x1.357]RUiFwySHDlO+XyWEjaOVvvhESYm+cuVbWMK9yneJ9nSZHlS6a3XSPyh2vGkd5drhqPShFjnmxBLIXg0ug2L1+5pW/3zCcHbwe2aj++X2jXqUvCp7F8dAiGH3OADphBzjgkKlzAnDlEZc22a3VZCpza0a5yr+Q4cUx9n5bx3t0p8siblvPRh7x0vKuMF2A3+v[/tex]'], 'type': 102}

  • 2022-06-30 问题

     试求 图[tex=0.571x0.786]HXNXn3AXpwdIpZt8+6oCEw==[/tex] 所示静定连续梁支座 [tex=0.714x1.0]YiLkHgl7MlxE+QjUplQUKA==[/tex]与[tex=0.857x1.0]PvQ1rNj9zmhWbdNmDhnQhA==[/tex] 处的约束力.已知 [tex=17.071x1.357]qy86HNFoOTVGuT9+Cj0tYwPyhqoV8oYRziTbDq+HJRF+FZiuLCYzBvF1qsvhDS08SqSY9963CfIeSkiv6P6C7w==[/tex].[img=525x241]17a044518e7545d.png[/img]

     试求 图[tex=0.571x0.786]HXNXn3AXpwdIpZt8+6oCEw==[/tex] 所示静定连续梁支座 [tex=0.714x1.0]YiLkHgl7MlxE+QjUplQUKA==[/tex]与[tex=0.857x1.0]PvQ1rNj9zmhWbdNmDhnQhA==[/tex] 处的约束力.已知 [tex=17.071x1.357]qy86HNFoOTVGuT9+Cj0tYwPyhqoV8oYRziTbDq+HJRF+FZiuLCYzBvF1qsvhDS08SqSY9963CfIeSkiv6P6C7w==[/tex].[img=525x241]17a044518e7545d.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}

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