• 2022-06-07 问题

    计算[tex=8.214x1.571]Yu61SGtu7OiBW4iECnNDqhKWJ4CKpFFrXILFYnozMYU=[/tex]的近似值。

    计算[tex=8.214x1.571]Yu61SGtu7OiBW4iECnNDqhKWJ4CKpFFrXILFYnozMYU=[/tex]的近似值。

  • 2022-06-28 问题

    利用全微分代替全增量,近似计算:[tex=8.214x1.571]XWSzkVsA73sy3eGg7Po+eRV0Bd4VJQttCmp1Naz6484=[/tex]

    利用全微分代替全增量,近似计算:[tex=8.214x1.571]XWSzkVsA73sy3eGg7Po+eRV0Bd4VJQttCmp1Naz6484=[/tex]

  • 2022-06-15 问题

    求下列函数的二阶导数:[tex=8.214x1.571]5BDaAiMzpx7LH9YE7auYQMONANKdUuM94R+73tgJ/XGIbV//E/5lIShta0UJ6xf9mYx9YTAX/uo/ys3LmHMPkg==[/tex]

    求下列函数的二阶导数:[tex=8.214x1.571]5BDaAiMzpx7LH9YE7auYQMONANKdUuM94R+73tgJ/XGIbV//E/5lIShta0UJ6xf9mYx9YTAX/uo/ys3LmHMPkg==[/tex]

  • 2022-06-03 问题

    试根据 [tex=5.786x1.571]o+DETVyo9CjitKwj8vzJ0wV75o+bf0V19bwi9aUg5wzTeW2Nufe7VqE03ebDx08h[/tex] 和 [tex=6.357x1.571]+XOCX3dCmcD3ASKyTc1XnahsqjHu2VlSFTig57dsagxt8p5dsi4zkvjXWzc1n1A7[/tex]之值,求 [tex=8.214x1.571]Wkrd79LZKkCslTn6AVrFuRN/wwjGbiIhaeNDUD7+t3OWoQAlipfL3r2WreWAFjSXVVVF3qxobkurLBv7cmFrgw==[/tex]的数值。

    试根据 [tex=5.786x1.571]o+DETVyo9CjitKwj8vzJ0wV75o+bf0V19bwi9aUg5wzTeW2Nufe7VqE03ebDx08h[/tex] 和 [tex=6.357x1.571]+XOCX3dCmcD3ASKyTc1XnahsqjHu2VlSFTig57dsagxt8p5dsi4zkvjXWzc1n1A7[/tex]之值,求 [tex=8.214x1.571]Wkrd79LZKkCslTn6AVrFuRN/wwjGbiIhaeNDUD7+t3OWoQAlipfL3r2WreWAFjSXVVVF3qxobkurLBv7cmFrgw==[/tex]的数值。

  • 2022-07-28 问题

    求分式线性映射[tex=3.286x1.357]ySGySJBkLne3ga0KuR9uXg==[/tex] 使上半平面映射为单位圆内部并满足条件: [tex=8.214x1.571]T2uuhRPBAkcUAc6EcrdCGVXF85i9WBeZL9la9yL65klmk/Fj9WE6GG8Qf1xG85z0[/tex][br][/br]

    求分式线性映射[tex=3.286x1.357]ySGySJBkLne3ga0KuR9uXg==[/tex] 使上半平面映射为单位圆内部并满足条件: [tex=8.214x1.571]T2uuhRPBAkcUAc6EcrdCGVXF85i9WBeZL9la9yL65klmk/Fj9WE6GG8Qf1xG85z0[/tex][br][/br]

  • 2022-05-28 问题

    设[tex=3.5x1.357]PHhZEiYbffZQ4ocJzISwJQ==[/tex]是环,[tex=4.286x1.214]uTy6R3F65a66IXR6qHmTRw==[/tex], 试证:如[tex=3.286x1.0]kBE3fVmC3EFMTW2wJnABmMPvZuiOMP0TToUmRpQZnHg=[/tex],则[tex=7.286x1.357]xdzEsA5U5CyW7h5A7Am2p3UQ56m3sSLRQXbyiWnSBcU=[/tex]及[tex=8.214x1.571]vPZWH/bs0A3lEKtgmKA6vLmnudx9kNOpnT77r57u70gyMtwp1+O8N2YVpJkSafhyw0DONZDMfmliKSV2Aji3bA==[/tex]

    设[tex=3.5x1.357]PHhZEiYbffZQ4ocJzISwJQ==[/tex]是环,[tex=4.286x1.214]uTy6R3F65a66IXR6qHmTRw==[/tex], 试证:如[tex=3.286x1.0]kBE3fVmC3EFMTW2wJnABmMPvZuiOMP0TToUmRpQZnHg=[/tex],则[tex=7.286x1.357]xdzEsA5U5CyW7h5A7Am2p3UQ56m3sSLRQXbyiWnSBcU=[/tex]及[tex=8.214x1.571]vPZWH/bs0A3lEKtgmKA6vLmnudx9kNOpnT77r57u70gyMtwp1+O8N2YVpJkSafhyw0DONZDMfmliKSV2Aji3bA==[/tex]

  • 2022-07-25 问题

    16位补码整数所能表示的范围是 未知类型:{'options': ['[tex=8.214x1.571]c0ANFsEyFV+vd1YxBn1S7P1ULnC2oOvGq3ed/pzF+QbBcu5i38e915H0gK0MJxn/[/tex]', '[tex=10.714x1.571]ahDH+SrT4Pc7C7jiZ0ECPsGNhXcAYiDGPOvpyp3ZZ6LfWPR0xlHrQx3XbhtK+5Qe[/tex]', '[tex=7.786x1.571]h5PcqLudcsGtvuAELzeduj5h3iajQPC8o6mNdGSe9Wd1qDyGWfOyECwMJFcLiDoZ[/tex]', '[tex=10.714x1.571]zYLkp8BimSgwlJXheHviA18JykYBx7Aq3tig0k5mfn4tc3K6796JZmcs8Hu8Oxc3[/tex]'], 'type': 102}

    16位补码整数所能表示的范围是 未知类型:{'options': ['[tex=8.214x1.571]c0ANFsEyFV+vd1YxBn1S7P1ULnC2oOvGq3ed/pzF+QbBcu5i38e915H0gK0MJxn/[/tex]', '[tex=10.714x1.571]ahDH+SrT4Pc7C7jiZ0ECPsGNhXcAYiDGPOvpyp3ZZ6LfWPR0xlHrQx3XbhtK+5Qe[/tex]', '[tex=7.786x1.571]h5PcqLudcsGtvuAELzeduj5h3iajQPC8o6mNdGSe9Wd1qDyGWfOyECwMJFcLiDoZ[/tex]', '[tex=10.714x1.571]zYLkp8BimSgwlJXheHviA18JykYBx7Aq3tig0k5mfn4tc3K6796JZmcs8Hu8Oxc3[/tex]'], 'type': 102}

  • 2022-07-25 问题

    下列函数可作为概率密度函数的是(    ). 未知类型:{'options': ['[tex=8.214x1.571]H5EiwoWaq5obgbYjjKtYr8/uRN7rdZ3Sz+xuqzhFKE4=[/tex]', '[tex=10.429x2.643]19bEwRx45yE5ncET7WBSn2kxGLPUbE3ppO98oc43OKplzVKiF0F8IzlwYgVa8DPYaZjNtsf3Q+hskGi5XTswIg==[/tex];', '[tex=12.786x4.214]0Oc6OdDyTxw5ASPscCgHyXs9SmRbr4AGeHHA2BFVXYdkpuHQRbYUzaAeOVregXjCoSwWMCmxdzfTWWoe6fhXuQG/XfubUYtQDXc411HW6/uOYLN5o8RvcE8SSe7W1zXwENB35SkRrWuCjandJFAdQmB6oo6qC2J7ZFUlmVKZfek=[/tex]', '[tex=9.643x3.357]0Oc6OdDyTxw5ASPscCgHyeIU6MrP3L2IBaIAkA0W1RUIsXUcFE2wBOn43EH2/9pw+DpP0f2M/5ASwnkudK8PL8jdXcbAzAELmGg6Xan8DnGdvgGXK2H4SRkaq9FH8WGO[/tex]'], 'type': 102}

    下列函数可作为概率密度函数的是(    ). 未知类型:{'options': ['[tex=8.214x1.571]H5EiwoWaq5obgbYjjKtYr8/uRN7rdZ3Sz+xuqzhFKE4=[/tex]', '[tex=10.429x2.643]19bEwRx45yE5ncET7WBSn2kxGLPUbE3ppO98oc43OKplzVKiF0F8IzlwYgVa8DPYaZjNtsf3Q+hskGi5XTswIg==[/tex];', '[tex=12.786x4.214]0Oc6OdDyTxw5ASPscCgHyXs9SmRbr4AGeHHA2BFVXYdkpuHQRbYUzaAeOVregXjCoSwWMCmxdzfTWWoe6fhXuQG/XfubUYtQDXc411HW6/uOYLN5o8RvcE8SSe7W1zXwENB35SkRrWuCjandJFAdQmB6oo6qC2J7ZFUlmVKZfek=[/tex]', '[tex=9.643x3.357]0Oc6OdDyTxw5ASPscCgHyeIU6MrP3L2IBaIAkA0W1RUIsXUcFE2wBOn43EH2/9pw+DpP0f2M/5ASwnkudK8PL8jdXcbAzAELmGg6Xan8DnGdvgGXK2H4SRkaq9FH8WGO[/tex]'], 'type': 102}

  • 2022-07-24 问题

    设A为n阶矩阵,则下列结论中不正确的是().(A)A可逆的充分必要条件是r(A)=n(B)A可逆的充分必要条件是A的列秩为n(C)A可逆的充分必要条件是A的每一行向量都为非零向量(D)A可逆的充分必要条件是当x≠0时,Ax≠0,其中[tex=8.214x1.571]Y+NF80KJNnRmAmc51jIbP4IIBemD1G/OXJkC4bWGlWrftiGlC8T31bNl59mCk4HwOP7ToQrHc0qbTsVktoYf7Ybi1Z3Lrpl4CtmzPAirlMk=[/tex].

    设A为n阶矩阵,则下列结论中不正确的是().(A)A可逆的充分必要条件是r(A)=n(B)A可逆的充分必要条件是A的列秩为n(C)A可逆的充分必要条件是A的每一行向量都为非零向量(D)A可逆的充分必要条件是当x≠0时,Ax≠0,其中[tex=8.214x1.571]Y+NF80KJNnRmAmc51jIbP4IIBemD1G/OXJkC4bWGlWrftiGlC8T31bNl59mCk4HwOP7ToQrHc0qbTsVktoYf7Ybi1Z3Lrpl4CtmzPAirlMk=[/tex].

  • 2022-06-15 问题

    设总体[tex=8.214x1.571]QBZUOQUmBWvo/FHw3V9n1EfoF7ukqDAh1PCxMrhfxfQm9ZA4WToBYecXmNKbs90UUlss5/CxuwPocsEsMeVXQA==[/tex]已知,[tex=7.929x1.571]QvdrmMEkEkXBcM7p9FuvTbsy21jIXoxVmxejgq9Oet6hXRhAveaWGnFS5lHBuxYl[/tex]是来自总体[tex=0.857x1.0]KGogyvwDAIJf/iL0H/9wjg==[/tex]的一个样本,试求统计量[tex=6.786x3.286]3rIyQnlxJJ39Ewa433DS9iDdL2nns1UvND979NmR0aHN9KOxMMwDYfzfAl2YXIkY[/tex]的分布密度.

    设总体[tex=8.214x1.571]QBZUOQUmBWvo/FHw3V9n1EfoF7ukqDAh1PCxMrhfxfQm9ZA4WToBYecXmNKbs90UUlss5/CxuwPocsEsMeVXQA==[/tex]已知,[tex=7.929x1.571]QvdrmMEkEkXBcM7p9FuvTbsy21jIXoxVmxejgq9Oet6hXRhAveaWGnFS5lHBuxYl[/tex]是来自总体[tex=0.857x1.0]KGogyvwDAIJf/iL0H/9wjg==[/tex]的一个样本,试求统计量[tex=6.786x3.286]3rIyQnlxJJ39Ewa433DS9iDdL2nns1UvND979NmR0aHN9KOxMMwDYfzfAl2YXIkY[/tex]的分布密度.

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