设[tex=5.643x1.286]sFj7UFUHa9d9ZOHqODDa94Z2omUdNZjntXY7ev0wtK9Rkxw4l0JuqliF+tf+4H7p[/tex]与[tex=13.571x1.286]sFj7UFUHa9d9ZOHqODDa94Z2omUdNZjntXY7ev0wtK9Ac5qk17280m5+Y9HwJ5b7QytpSffl+I9Iyw3wuyKbcegCJHImWK9vzZ1456LiC0zcWkLrvo+5h2bZvz34IwvW[/tex]有相同的秩。证明:[tex=5.643x1.286]sFj7UFUHa9d9ZOHqODDa94Z2omUdNZjntXY7ev0wtK9Rkxw4l0JuqliF+tf+4H7p[/tex]与[tex=5.714x1.286]sFj7UFUHa9d9ZOHqODDa94Z2omUdNZjntXY7ev0wtK+gjmjEJuDzSjOEJLzhzC2I[/tex]等价。
举一反三
- 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
- 【单选题】Which of the following matrices does not have the same determinant of matrix B: [1, 3, 0, 2; -2, -5, 7, 4; 3, 5, 2, 1; -1, 0, -9,-5] A. [1, 3, 0, 2; -2, -5, 7, 4; 0, 0, 0, 0; -1, 0, -9, -5] B. [1, 3, 0, 2; -2, -5, 7, 4; 1, 0, 9, 5; -1, 0, -9, -5] C. [1, 3, 0, 2; -2, -5, 7, 4; 3, 5, 2, 1; -3, -5, -2, -1] D. [1, 3, 0, 2; -2, -5, 7, 4; 0, 0, 0, 1; -1, 0, -9, -5]
- 已知4x-3y-3z=0,x-3y+z=0(x≠0,y≠0,z≠0),那么x:y:z A: 4:3:9 B: 4:3:7 C: 12:7:9 D: 以上结论都不对
- 【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
- >>>x= [10, 6, 0, 1, 7, 4, 3, 2, 8, 5, 9]>>>print(x.sort()) 语句运行结果正确的是( )。 A: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10] B: [10, 6, 0, 1, 7, 4, 3, 2, 8, 5, 9] C: [10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0] D: ['2', '4', '0', '6', '10', '7', '8', '3', '9', '1', '5']