• 2022-06-03 问题

    如果[tex=8.857x3.357]mqOKs44jrJgbK/+3e5yEgUUi7iZ9ZN3sN1CvJoEyKEQCisj6syAGP+L5oQZ0LTL+1eNdEv56ubCDwjSlbuYM+aMncZVYztUnO8k5pxnVAM8BaQc0RoWRO+S229Ru4Rjjdz2V3hrtkL7GCZ0P4eL1j22fklRUbk6/Y37GS8eNCvifrU2fZupR7JsN8bNsSzlk[/tex],则[tex=9.857x3.929]mqOKs44jrJgbK/+3e5yEgc08ec4l5TzwDBap+y3mkljHrdGWgH3VCat5Z1r5Xm+pBiBcBco6daX6sqW70Lv2Brza24rii6IaikgDbZwBjN3GuFy2F+l/QoDRY8THtcyj4prOnBCaWMWk5b7AYudGIfGi3WcYPGm3QOuuWvmQE+em2NcSQjzdTj44HVJt8ICe+iQUQQfC+ZyauhL/TOUfaQ==[/tex] A: 2 B: 4 C: 12 D: 16

    如果[tex=8.857x3.357]mqOKs44jrJgbK/+3e5yEgUUi7iZ9ZN3sN1CvJoEyKEQCisj6syAGP+L5oQZ0LTL+1eNdEv56ubCDwjSlbuYM+aMncZVYztUnO8k5pxnVAM8BaQc0RoWRO+S229Ru4Rjjdz2V3hrtkL7GCZ0P4eL1j22fklRUbk6/Y37GS8eNCvifrU2fZupR7JsN8bNsSzlk[/tex],则[tex=9.857x3.929]mqOKs44jrJgbK/+3e5yEgc08ec4l5TzwDBap+y3mkljHrdGWgH3VCat5Z1r5Xm+pBiBcBco6daX6sqW70Lv2Brza24rii6IaikgDbZwBjN3GuFy2F+l/QoDRY8THtcyj4prOnBCaWMWk5b7AYudGIfGi3WcYPGm3QOuuWvmQE+em2NcSQjzdTj44HVJt8ICe+iQUQQfC+ZyauhL/TOUfaQ==[/tex] A: 2 B: 4 C: 12 D: 16

  • 2022-05-31 问题

    利用对角线法则计算行列式:[tex=5.214x3.5]mqOKs44jrJgbK/+3e5yEgRJOx5FSO34FKpZXJhJV2YMa0RXVwh4ftTNXNN+gIhf7I0NmRIAI3An0Ka8CizSrcb9FDKx+3UU0u1lL+6kaL222KiuGsFtZKn5Nfw4o03Vq[/tex]。

    利用对角线法则计算行列式:[tex=5.214x3.5]mqOKs44jrJgbK/+3e5yEgRJOx5FSO34FKpZXJhJV2YMa0RXVwh4ftTNXNN+gIhf7I0NmRIAI3An0Ka8CizSrcb9FDKx+3UU0u1lL+6kaL222KiuGsFtZKn5Nfw4o03Vq[/tex]。

  • 2022-06-14 问题

    按定义计算行列式:[tex=10.286x5.929]mqOKs44jrJgbK/+3e5yEgU4JOt5SaP7JTgm/fI5siCblpVKCMaDGl/yZh2Ls9RYWdOsyqR7QA04VAbsJg8JY5aBaQ/hngMRSIES8rg14V4xwqUbCKenVUvJP+JjPM0T3thwV+Qy2SDBSlcLOmNM+uDAa39xA8KkPhGd7zinbeCXnpnk8jGAprJl4RC2Eb+fFqLFKdm21Tw5MuzETuf2WUw==[/tex]。

    按定义计算行列式:[tex=10.286x5.929]mqOKs44jrJgbK/+3e5yEgU4JOt5SaP7JTgm/fI5siCblpVKCMaDGl/yZh2Ls9RYWdOsyqR7QA04VAbsJg8JY5aBaQ/hngMRSIES8rg14V4xwqUbCKenVUvJP+JjPM0T3thwV+Qy2SDBSlcLOmNM+uDAa39xA8KkPhGd7zinbeCXnpnk8jGAprJl4RC2Eb+fFqLFKdm21Tw5MuzETuf2WUw==[/tex]。

  • 2022-06-17 问题

    计算二阶行列式:[tex=7.929x2.786]mqOKs44jrJgbK/+3e5yEgfMRTxAEJFHlt6D6Tr7aCuFFMV/3H9yxr5fsoqYTR9eG8Dry/z9oDpY8qUCW5FY/MOTkyixktYZ2jBipW5M3NROarUcuLumdxOGoRuKeWHjmI18k+DpAeYzilmg24+df/Q==[/tex]。

    计算二阶行列式:[tex=7.929x2.786]mqOKs44jrJgbK/+3e5yEgfMRTxAEJFHlt6D6Tr7aCuFFMV/3H9yxr5fsoqYTR9eG8Dry/z9oDpY8qUCW5FY/MOTkyixktYZ2jBipW5M3NROarUcuLumdxOGoRuKeWHjmI18k+DpAeYzilmg24+df/Q==[/tex]。

  • 2022-06-14 问题

    利用行列式的性质,计算行列式:[tex=8.929x4.071]mqOKs44jrJgbK/+3e5yEga0o63jJTp+ytzfROp20EZxttg1Wpd5v1OKnFbMtqrqWAx7PAja6awH5/e/fdoSO8o1uZ9IesDT5Dhe5P5PiY2l1WnI/oFF7XiiSt1Aa6JTQitRjhmGbcqEGx9efJlBWvA==[/tex]。

    利用行列式的性质,计算行列式:[tex=8.929x4.071]mqOKs44jrJgbK/+3e5yEga0o63jJTp+ytzfROp20EZxttg1Wpd5v1OKnFbMtqrqWAx7PAja6awH5/e/fdoSO8o1uZ9IesDT5Dhe5P5PiY2l1WnI/oFF7XiiSt1Aa6JTQitRjhmGbcqEGx9efJlBWvA==[/tex]。

  • 2022-06-01 问题

    证明[tex=16.643x6.357]mqOKs44jrJgbK/+3e5yEgVj9lp7EWHeI7lvmTJAyfa/A9Nr0eCNu6v7b7EbYBSP0I8W834AZEZTgMWFw/9SO4B1jU0fzGccbn+1KGfTujTXHAF67EvLb9zlO9k11Jhwje/pRbcs7Dthtm8IkxrZHAyjg/oPtj9eZqZtWCLzGsPc9IbZjJfEFp+tTVGjgYSmOC8Zv0rGb5iezqh3IaiWWDnsLMP/wd0f1x7kSMzrdaej/t2VZzzZAwnOIHmoHNFcOOrl3IPt93icgvJsLhLlsIqlcKzu7A9VeVqI0eONibDYKmJDCWQDHgkWZi8Ga2yvUBcvBTu+Lb+LXfCMqYCuktA==[/tex][tex=13.571x1.286]U4iV2oAzI0msG5rqetkhoZynEoIxM2vrh7flrEkfrTIEKDEGMz8Di78lh69MmHmD[/tex]

    证明[tex=16.643x6.357]mqOKs44jrJgbK/+3e5yEgVj9lp7EWHeI7lvmTJAyfa/A9Nr0eCNu6v7b7EbYBSP0I8W834AZEZTgMWFw/9SO4B1jU0fzGccbn+1KGfTujTXHAF67EvLb9zlO9k11Jhwje/pRbcs7Dthtm8IkxrZHAyjg/oPtj9eZqZtWCLzGsPc9IbZjJfEFp+tTVGjgYSmOC8Zv0rGb5iezqh3IaiWWDnsLMP/wd0f1x7kSMzrdaej/t2VZzzZAwnOIHmoHNFcOOrl3IPt93icgvJsLhLlsIqlcKzu7A9VeVqI0eONibDYKmJDCWQDHgkWZi8Ga2yvUBcvBTu+Lb+LXfCMqYCuktA==[/tex][tex=13.571x1.286]U4iV2oAzI0msG5rqetkhoZynEoIxM2vrh7flrEkfrTIEKDEGMz8Di78lh69MmHmD[/tex]

  • 2022-06-08 问题

    用行列式性质计算此行列式(要求写出计算过程):[tex=15.214x3.929]mqOKs44jrJgbK/+3e5yEgWzLKI/yOV3csEijdnfeEGQCp7H7Cfwbm2TMEmyoRcoIhEPCywGNc20C+Her2alGzyNA02AsXMI1+l/sMSMezC1KF5Lbf0t9jVFl5UsGGUCSfuPeYscGMxmGb0yO+wfnsQ==[/tex]

    用行列式性质计算此行列式(要求写出计算过程):[tex=15.214x3.929]mqOKs44jrJgbK/+3e5yEgWzLKI/yOV3csEijdnfeEGQCp7H7Cfwbm2TMEmyoRcoIhEPCywGNc20C+Her2alGzyNA02AsXMI1+l/sMSMezC1KF5Lbf0t9jVFl5UsGGUCSfuPeYscGMxmGb0yO+wfnsQ==[/tex]

  • 2022-05-27 问题

    设A,B,C,D都是n阶矩阵,[tex=8.071x1.286]3HMQ6ctJhg1fepM3G7zc/7Slxp4ogGBYYOtXEpuiO5zKS2eGXg1LAAnjke1gQdau[/tex]。证明:[tex=10.429x2.786]mqOKs44jrJgbK/+3e5yEgd35suHbTJ/ArRQnFQgazM1CofWTePwj4c2Q7spN1d3YIkRB3kHNUmhXYg6zZR8I9bUXlboh2CBD8Utt0krsmsg=[/tex]

    设A,B,C,D都是n阶矩阵,[tex=8.071x1.286]3HMQ6ctJhg1fepM3G7zc/7Slxp4ogGBYYOtXEpuiO5zKS2eGXg1LAAnjke1gQdau[/tex]。证明:[tex=10.429x2.786]mqOKs44jrJgbK/+3e5yEgd35suHbTJ/ArRQnFQgazM1CofWTePwj4c2Q7spN1d3YIkRB3kHNUmhXYg6zZR8I9bUXlboh2CBD8Utt0krsmsg=[/tex]

  • 2021-04-14 问题

    44

    44

  • 2022-06-04 问题

    两个阴平连到一起,正确的调值是? A: 44 44 B: 45 55 C: 55 33 D: 44 55

    两个阴平连到一起,正确的调值是? A: 44 44 B: 45 55 C: 55 33 D: 44 55

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