• 2022-10-25
    判断以下方阵是不是可逆矩阵.若是,则求出它们的逆矩阵[tex=9.143x3.643]+HNIZcMaSzNwCe0LO7bsUtE7T/ezT3heRoWANqpeD09KrxSgu8v4FV+x+PksGvb/aIxfoQFrr8BMXI3Z4WSR09en51eSMYY+id+9U3fpOU8eC+nkXTPrNQyMYANLz2QorGZUHCH1naWy9xb/t0s/oA==[/tex][br][/br]
  • 解[tex=30.071x3.643]v6h0emw+MX5fBgkKQJsSsBWh4ziuWWTrujGGFiRSvGzhDoRTA7oW5AU1WAE2TKH4fjOxCq86s+gVWJTkJFnYxw/gnIipKNV+SgqHkeYB1wbrpRUoAl75kaAfR7mfP0UV3cMD7DqPVOULFr16ls9510EDr8EJylj1UGTsNdIdFa1UO8sI8IQ4SU2Av+sWQtFd7eQdK+4l61lhFX3YAMeYHk9yQ3Pe0+/8oGoWeA4+5K1foQRYAocWiZZ30ppPLSe5Phdkag9bYJJGY8352Ttjlj9ScP/aajAMDF32ouX4d1d/Meajfmon3/1Zhuyb68y/GXKCYqfxNxLNOiqVwSr/f+W0kN6zS9KL3ZakkeYDDG0bSWE/RdpqFi5/LsCO30CoVDtDW2m6SsLUIarhz8JnFA==[/tex][tex=29.214x3.643]5yAunLq6eo1Om4MmlwqxZmfBHlpAzHQRUjulKZiuZizTKMQJ5JoNfwWJbP91A9svPQ9HMW04D8rIEx6KV+xWAUkWfT//TL5nB8M91lCwmkNUeUgNQqwFWQhbpR18zu3gZGqDsTMf8EoKhax3RE3MMdNVeVWb22pLR5e4G1OC24IcfDfXayKtXLgqDv2q26ey/t1abNEUEI7VkbuESLXKAR1r1bALGv0/w3iwhtHexpCVS7kMrB08Fr85U4sXzz/H59HxcVJOotXMPou09BLujUm46rxBajHh+bvZ0soEnxCVU1AhCih3Yy9nCfIpLp0iT4IMGRp4OKhQqtFUtxqlnJ4rFHKT8nOQdx9wfYR+x6Y=[/tex] [tex=14.929x3.643]5yAunLq6eo1Om4MmlwqxZmfBHlpAzHQRUjulKZiuZizWlADZOHOerRNBQAZC/cK9sP5FKIk45SFRj0uSa3yQ27CXhdbDUgF8L4bnwN8m3CsC1/gHwBQ8LDk+dCyuCWiXVC0j/6PagIhMBjOCDLgOten7EfGF9oSGdP0Hdpue2YnEYq4jqbMql09KONwj3P6g[/tex][tex=15.0x5.214]dM8huKJAOgMSySuXOjQHuid5ZrUi7shBB+iuZMW8J15dwmhHRb7inOh+Ctjn0pUPXZbLf/QU8vhmeeBkrENmG2SNpqU61uqhnx5AzIG/3VoF8HddP1U1UMQb659LhcVhCFbhRtA/IczXTIeFn5k7I2DHh18qU6bZOErcXqnnQF17J50XVerDez2N6m3SnheMzMtsqhkAxS6qZcpQFfzO4o5e8TCs83bJ34Org5oq2S8=[/tex][tex=16.5x7.643]ZWfRhkXrkTRZVcgqAJtf7JMLT1EJuwnIojMKPFQbfJ/Dk+0gLAXrbwKA77tVaQr9hvcpknHqnPTL+wPFjN7ZNhbp0hfe4FxvfLfcYrVEzDvKI1nnaZKR/CEGq7c566PCBzdscbubL5BUBNg4bv3GXk2QDUTH2EGRALsx+uq0drewdiZke6766YyOEhQy4/Pu0GDCay1qPo2VnEtj1q8aiRX2t8fBSs8Q+cced5Mq2c5ce7irRmlL2vnWe9TTqvtBSdhKwKPdu7JKSRbH8jfAQSq4jK8RTerb/rb5FtDoWconhfLPn51UjEGyFaOVF5FF[/tex]所以[tex=0.929x1.0]zkuxy59wnc0FrSuUc1OFF6pw7am5S+IP5AAfiovVsGI=[/tex]可逆, 且[tex=12.786x3.929]c5Cf4pRARaBipYntugL/3o6BT/57L4anmkXMUm5ySNYNYsm8Z32JVkMTNbza8IIpKmB22ql2DTV7h8x7CDVp+4xo5BPyJYjh71NnmjiL9TQtTtopu+jUmfwq7o+7oHlUMifF/J8RU5OMawldmELctQwIxyOiBer/mOgS3qf1giU=[/tex].

    内容

    • 0

      set1 = {x for x in range(10)} print(set1) 以上代码的运行结果为? A: {0, 1, 2, 3, 4, 5, 6, 7, 8, 9} B: {0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10} C: {1, 2, 3, 4, 5, 6, 7, 8, 9} D: {1, 2, 3, 4, 5, 6, 7, 8, 9,10}

    • 1

      【单选题】请用地点定桩法在4分钟内记忆数字。 4 0 1 3 6 3 5 1 9 8 8 9 7 2 9 3 0 9 5 3 1 7 7 5 2 3 3 0 5 0 1 4 1 3 8 3 5 7 9 7 (5.0分) A. 已背 B. 未背

    • 2

      已知S盒如下表,若输入为100010,则二进制输出为( ) [br][/br] 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 0 7 13 14 3 0 6 9 10 1 2 8 5 11 12 4 15 1 13 8 11 5 6 15 0 3 4 7 2 12 1 10 14 9 2 10 6 9 0 12 11 7 13 15 1 3 14 5 2 8 4 3 3 15 0 6 10 1 13 8 9 4 5 11 12 7 2 14 A: 0110 B: 1001 C: 0100 D: 0101

    • 3

      以下程序段实现的输出是()。for(i=0;i<;=9;i++)s[i]=i;for(i=9;i>;=0;i--)printf("%2d",s[i]);[/i][/i] A: 9 7 5 3 1 B: 1 3 5 7 9 C: 9 8 7 6 5 4 3 2 1 0 D: 0 1 2 3 4 5 6 7 8 9

    • 4

      将矩阵a=[1 2 3;4 5 6;7 8 9]改变成 b=[3 6 9;2 5 8;1 4 7]的命令是( )。