• 2022-07-23 问题

    求下列函数的极限 :[tex=8.571x2.786]T2BS5iTa7CvopaxAKMV3iM8ZrRcRED0U3m5pyIIJlL14esLbzz5ze/F7TiBnABM58D/Mfu86x9XJoIPXkjbyEWAG22JE0q06N3sqd37nzyuwNzJwTnjoV+zFIUs1QCy3[/tex][br][/br]

    求下列函数的极限 :[tex=8.571x2.786]T2BS5iTa7CvopaxAKMV3iM8ZrRcRED0U3m5pyIIJlL14esLbzz5ze/F7TiBnABM58D/Mfu86x9XJoIPXkjbyEWAG22JE0q06N3sqd37nzyuwNzJwTnjoV+zFIUs1QCy3[/tex][br][/br]

  • 2022-06-19 问题

    根据数据中心化的一元线性回归模型,证明:[tex=8.571x2.786]G994dFWlem+7lLiTIjfMEH6ROPuwZYEgjdSGf38t9XmRZwGyIs9LbJz/53LuzQrfjD6U5R2UeU6iew3JdelJmx1MoSOYH1j9JHuE0NI3STI=[/tex]。

    根据数据中心化的一元线性回归模型,证明:[tex=8.571x2.786]G994dFWlem+7lLiTIjfMEH6ROPuwZYEgjdSGf38t9XmRZwGyIs9LbJz/53LuzQrfjD6U5R2UeU6iew3JdelJmx1MoSOYH1j9JHuE0NI3STI=[/tex]。

  • 2022-06-29 问题

    在表达式[tex=8.571x2.786]OqU0SQaVHd2x+OGLCy0gvddNUHjQkqZ9bLEmNZrHcHiSsS4jBPakvqocwfo3W9pqn6P2vlE90jSg1k6WxFZM8cX3fm2N4IOOX5BZyswfjyTyygaIn+tjTLr9Fsx8JPU+[/tex]中,在积分符号下取极限是否合理?

    在表达式[tex=8.571x2.786]OqU0SQaVHd2x+OGLCy0gvddNUHjQkqZ9bLEmNZrHcHiSsS4jBPakvqocwfo3W9pqn6P2vlE90jSg1k6WxFZM8cX3fm2N4IOOX5BZyswfjyTyygaIn+tjTLr9Fsx8JPU+[/tex]中,在积分符号下取极限是否合理?

  • 2022-05-30 问题

    求曲线[tex=8.571x2.786]fnpmC2J6JmQBLyo5NmGAz3Bv3vS3cIs22G3pHU9dmc3XpF0Lx4rRiN3sG4RcaZAD6HiY1n/yoPeOSsS69vvZEDFISBJ5UxOeVl3vxT3BX0E=[/tex]在[tex=2.143x1.286]5u+Kfi2y78D0EeH+RhjPUA==[/tex]点的切线方程 .

    求曲线[tex=8.571x2.786]fnpmC2J6JmQBLyo5NmGAz3Bv3vS3cIs22G3pHU9dmc3XpF0Lx4rRiN3sG4RcaZAD6HiY1n/yoPeOSsS69vvZEDFISBJ5UxOeVl3vxT3BX0E=[/tex]在[tex=2.143x1.286]5u+Kfi2y78D0EeH+RhjPUA==[/tex]点的切线方程 .

  • 2022-07-28 问题

    画出下列累次积分所对应的二重积分的积分区域,并更换积分顺序:[tex=8.571x2.786]zUqPynV0PNWAiP0voH01nQhmngYvDqiau7LEeM5H41wEJYz+5UTLhnkQunHRKEtm[/tex].

    画出下列累次积分所对应的二重积分的积分区域,并更换积分顺序:[tex=8.571x2.786]zUqPynV0PNWAiP0voH01nQhmngYvDqiau7LEeM5H41wEJYz+5UTLhnkQunHRKEtm[/tex].

  • 2022-06-03 问题

    求下列分块矩阵的逆矩阵。[tex=8.571x2.786]sSXBpxJWudVpH1R35o4LnIX+ey5PTeFYG8buhi1eHRQaMA31epxhkBU2kYnJP0rLP0S41g0X/7XbBnAA7OW6P3hzJA9rGAVUFIbEpIHRJzY=[/tex]  其中 [tex=21.071x3.643]yVaxs2p/TzpdvvJ34ZiSlPcweVrxEHdNFx7m8AfJj0DT1jk9Kvw4eJZEabEBSHm4me1Fjn6Ql26xdKX7qeZ1OJbv8Sqlr0B66vmhYtejtSbapy/ClNi/RyrDU75TdlUOafoXwKFlO94DaRDq3Vi//6pTV5RIH4Pr6xBJENjSlT4jghOIdNYsXT/pq5Tk4GbQkrBjUj/mkndqLiOInHTIr4RkLMJ6lJ5QqhdU2bTCN3w=[/tex]

    求下列分块矩阵的逆矩阵。[tex=8.571x2.786]sSXBpxJWudVpH1R35o4LnIX+ey5PTeFYG8buhi1eHRQaMA31epxhkBU2kYnJP0rLP0S41g0X/7XbBnAA7OW6P3hzJA9rGAVUFIbEpIHRJzY=[/tex]  其中 [tex=21.071x3.643]yVaxs2p/TzpdvvJ34ZiSlPcweVrxEHdNFx7m8AfJj0DT1jk9Kvw4eJZEabEBSHm4me1Fjn6Ql26xdKX7qeZ1OJbv8Sqlr0B66vmhYtejtSbapy/ClNi/RyrDU75TdlUOafoXwKFlO94DaRDq3Vi//6pTV5RIH4Pr6xBJENjSlT4jghOIdNYsXT/pq5Tk4GbQkrBjUj/mkndqLiOInHTIr4RkLMJ6lJ5QqhdU2bTCN3w=[/tex]

  • 2022-06-09 问题

    设线性方程组[tex=8.571x2.786]GE56u9QCDTqcLxZ66HADyjJiEdC+WzN+E7rRFVulsHxis7ZSFUn/eF8fcpyBTbTXAkumlYoEfiHIcAMUq3VXAs3SyLFW8gTc5j7JbNDPLhypKpzp1BVGYyAG7/QSIvFuxbfdMG90JWTWjcxdh2nqoA==[/tex],试求能使高斯-赛德尔迭代收敛的[tex=0.643x1.286]vYiGJJ9TAtvnQmM1PsOB8g==[/tex]的取值范围。

    设线性方程组[tex=8.571x2.786]GE56u9QCDTqcLxZ66HADyjJiEdC+WzN+E7rRFVulsHxis7ZSFUn/eF8fcpyBTbTXAkumlYoEfiHIcAMUq3VXAs3SyLFW8gTc5j7JbNDPLhypKpzp1BVGYyAG7/QSIvFuxbfdMG90JWTWjcxdh2nqoA==[/tex],试求能使高斯-赛德尔迭代收敛的[tex=0.643x1.286]vYiGJJ9TAtvnQmM1PsOB8g==[/tex]的取值范围。

  • 2022-11-03 问题

    求下列序列[tex=1.929x1.357]YbnwETIZC5fqq4B/U/FJU80M3U78SQ7oCZ1RIN8aKNo=[/tex]的聚点和极限,如果是实数序列,则同时求出上极限和下极限:[tex=8.571x2.786]T975tigu3XWBJ2j3CoCKNUoRk1xYgr2+6DwgiiVuYJUZQ8+T+oUXuiyeu7yYOQp2lhM6OyHRwfzDAYaT068b8w==[/tex].

    求下列序列[tex=1.929x1.357]YbnwETIZC5fqq4B/U/FJU80M3U78SQ7oCZ1RIN8aKNo=[/tex]的聚点和极限,如果是实数序列,则同时求出上极限和下极限:[tex=8.571x2.786]T975tigu3XWBJ2j3CoCKNUoRk1xYgr2+6DwgiiVuYJUZQ8+T+oUXuiyeu7yYOQp2lhM6OyHRwfzDAYaT068b8w==[/tex].

  • 2022-05-31 问题

    下列反常积分中收敛的是 未知类型:{'options': ['[tex=6.5x2.714]uYo4SrtjkqYath3mU9F8mIyIialNlPDPnZldfA2gwoDaj6wtImq2c6WfHK2KPXbCjuTJJ7vCTCadB7dLt1YwYQ==[/tex]', '[tex=8.571x2.786]+ycGv6YhOuOZ65G62GRaCzYdlWLwv9R52bpKbf6pC5WaJH6XeUbKoIdpFEM5KM2l2WFpkY1hwhElf/C8Na/Gbw==[/tex]', '[tex=5.571x2.429]84FpKOFCerrpb90b4nq0uf+GuoVHBETIWqRQGTqn29NtmmlGJHIn11SOTV3gRixc[/tex]', '[tex=5.214x2.786]/gTipYodITWi1ZaplQ4Cs8g80FMY/40BN6EbwHkGsGXauvgsfYAPO0/Yxc7EcbbG[/tex]'], 'type': 102}

    下列反常积分中收敛的是 未知类型:{'options': ['[tex=6.5x2.714]uYo4SrtjkqYath3mU9F8mIyIialNlPDPnZldfA2gwoDaj6wtImq2c6WfHK2KPXbCjuTJJ7vCTCadB7dLt1YwYQ==[/tex]', '[tex=8.571x2.786]+ycGv6YhOuOZ65G62GRaCzYdlWLwv9R52bpKbf6pC5WaJH6XeUbKoIdpFEM5KM2l2WFpkY1hwhElf/C8Na/Gbw==[/tex]', '[tex=5.571x2.429]84FpKOFCerrpb90b4nq0uf+GuoVHBETIWqRQGTqn29NtmmlGJHIn11SOTV3gRixc[/tex]', '[tex=5.214x2.786]/gTipYodITWi1ZaplQ4Cs8g80FMY/40BN6EbwHkGsGXauvgsfYAPO0/Yxc7EcbbG[/tex]'], 'type': 102}

  • 2022-06-10 问题

    设矩阵[tex=9.357x2.786]1/FLtrC8hB/pNFpnMt28N6YYhhrVlCnLrHaHUYZCgJstoBlQW74K098qRS27vjzxqZvh8NCaaXqbVKZfBsQhjpOy0KC2VU9FHxLv3mE/qR8N9q3hXiuBU9MUzKXboZLL[/tex],[tex=8.571x2.786]wK/tDmUX/6mGW6f2tpIfainxFTS8uYnRF1mCoHt/WCEChHv3XPqf3yj5+0NtLDXUwL9D4FjQYBOrt3eY9/d7v67/RxoB1U0IEsnevrFXcNs1Kh3C0tFDufFlEUeuV84l[/tex],求[tex=2.571x1.143]r5Haq7W1lVGBc4dFEM2Zk1W3v8ag3hQ/jxq8jI47ovMRWPbY5eGp58IqJCI62D0L[/tex]、[tex=2.571x1.143]jyWvUwiZHYocudv3dZ40u3PiCE6YmHjBoAEA/VHQYKI=[/tex]、[tex=3.571x1.143]Uj9WGbTLOm+tIC5hyi5Kpj7E/Dz3NFHyDtRpARrYS6yN8KCQQyGLDgaFdBL1IeUR[/tex]。

    设矩阵[tex=9.357x2.786]1/FLtrC8hB/pNFpnMt28N6YYhhrVlCnLrHaHUYZCgJstoBlQW74K098qRS27vjzxqZvh8NCaaXqbVKZfBsQhjpOy0KC2VU9FHxLv3mE/qR8N9q3hXiuBU9MUzKXboZLL[/tex],[tex=8.571x2.786]wK/tDmUX/6mGW6f2tpIfainxFTS8uYnRF1mCoHt/WCEChHv3XPqf3yj5+0NtLDXUwL9D4FjQYBOrt3eY9/d7v67/RxoB1U0IEsnevrFXcNs1Kh3C0tFDufFlEUeuV84l[/tex],求[tex=2.571x1.143]r5Haq7W1lVGBc4dFEM2Zk1W3v8ag3hQ/jxq8jI47ovMRWPbY5eGp58IqJCI62D0L[/tex]、[tex=2.571x1.143]jyWvUwiZHYocudv3dZ40u3PiCE6YmHjBoAEA/VHQYKI=[/tex]、[tex=3.571x1.143]Uj9WGbTLOm+tIC5hyi5Kpj7E/Dz3NFHyDtRpARrYS6yN8KCQQyGLDgaFdBL1IeUR[/tex]。

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