• 2022-06-16
    设[p=align:center][tex=27.286x3.643]No14tepOrgpLFcwU7iwUQaq7tFClr8PoT8Gx3elh/kJBZJOkCEiiQ94Q+1K4QVmbLaM1MewfeX4PG2ZhB1x5Dk6WzV+7gfin26eTspWj5rH098hjIq6UZTxppTzNKowO8ZDBfBwD5G1SW1vKlDbAp13VN2v/V2VMvFImYZXAxNHcXcDZgd1KFNxCAsrE+OCv9n3hP9EUHCzRJl+rsAfZHuzApHYoANVooq1yafZemwIhrItU90nvfFGzXPcFOCN739L6jOJPUt4PGwSQyNrh0ad8m8rBDeRBej8yh/4DxU3NoD7Yy+R4ZNRz8ETpEcfFStZBsPuWC23gjwInlZ01jg==[/tex]计算矩阵 [tex=11.214x1.429]GqHp58CnxVN7QBpmqMCy2RbfrmWb5XGYEcdCfJjkQ24DMlGRI63UMgYo1btp1sC3mCK9lk7tzzsRqACrk84suw==[/tex] 与 [tex=1.5x1.0]UHSADI+voMfLNnqcH0gs1w==[/tex] 是否相等 [tex=2.0x1.0]lmziBil/PDdVROkMeDak+A==[/tex] 与 [tex=2.071x1.143]tQiH1vEWA8l9UqmgzAse2YtLpoNF5UOBytG5T3cLk3k=[/tex] 是否相等?[p=align:center][br][/br]
  • 解 [p=align:center][tex=32.429x7.643]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[/tex][tex=6.071x1.286]uJzXLSches9Ldyq8x2ioAq8/2cZkGAozkAwFTLM6yZE=[/tex] 与 [tex=2.5x1.214]q73fylRXASb6tGOjIixGPQ==[/tex] 互为转置.

    举一反三

    内容

    • 0

      A=[1 2 3 4 5 6 7 8 9]A(5)=[]A=1 4 7 5 8 3 6 9

    • 1

      【阅读理解(选择)/完型填空】基于以下描述回答 1-2 题: 下表是 9 名评委对 10 名学生的毕业设计进行等级评定结果: 评委 A B C D E F G H I J 1 1 2 4 3 9 6 5 8 7 10 2 1 4 2 5 6 7 3 10 8 9 3 1 3 4 5 2 8 9 6 10 7 4 1 3 4 5 2 6 10 8 7 9 5 1 9 2 5 6 3 4 8 10 7 6 1 4 9 2 5 6 7 3 10 8 7 1 3 5 10 2 6 9 7 8 4 8 1 3 5 7 6 4 8 10 2 9 9 1 2 8 4 9 6 3 7 5 10

    • 2

      (1)5 7 9 11() () ()()(2)26 23 20 17()() 8()(3)1 2 4 7 11() () 29(4)7 3 8 3 9 3()()(5)1 1 2 3 5 8()()

    • 3

      已知a=[1 2 3; 4 5 6; 7 8 9],执行命令:a([3,1],:)=a([1,3],:),a将变为( )。 A: [4 5 6;4 5 6;4 5 6] B: [7 8 9;4 5 6;1 2 3] C: [2 2 2;5 5 5;8 8 8] D: [3 2 1;6 5 4;9 8 7]

    • 4

      设[p=align:center][tex=27.286x3.643]No14tepOrgpLFcwU7iwUQaq7tFClr8PoT8Gx3elh/kJBZJOkCEiiQ94Q+1K4QVmbLaM1MewfeX4PG2ZhB1x5Dk6WzV+7gfin26eTspWj5rH098hjIq6UZTxppTzNKowO8ZDBfBwD5G1SW1vKlDbAp13VN2v/V2VMvFImYZXAxNHcXcDZgd1KFNxCAsrE+OCv9n3hP9EUHCzRJl+rsAfZHuzApHYoANVooq1yafZemwIhrItU90nvfFGzXPcFOCN739L6jOJPUt4PGwSQyNrh0ad8m8rBDeRBej8yh/4DxU3NoD7Yy+R4ZNRz8ETpEcfFStZBsPuWC23gjwInlZ01jg==[/tex]计算矩阵 [tex=11.214x1.429]GqHp58CnxVN7QBpmqMCy2RbfrmWb5XGYEcdCfJjkQ24DMlGRI63UMgYo1btp1sC3mCK9lk7tzzsRqACrk84suw==[/tex] 与 [tex=1.5x1.0]UHSADI+voMfLNnqcH0gs1w==[/tex] 是否相等 [tex=2.0x1.0]lmziBil/PDdVROkMeDak+A==[/tex] 与 [tex=2.071x1.143]tQiH1vEWA8l9UqmgzAse2YtLpoNF5UOBytG5T3cLk3k=[/tex] 是否相等?[p=align:center][br][/br]