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=10.429x3.929]+HNIZcMaSzNwCe0LO7bsUtE7T/ezT3heRoWANqpeD0859RIx1o2+aESKEWP4ze33w3LcJHAEqJL9sz2nCuN4M2jNeGDLGZnRHG7LP2hEqzZm/oeBhp633Mh5Xs9XiLJyxFFBnj+dpsNNIWQhKWQmzA==[/tex]
举一反三
- 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=8.714x3.643]+HNIZcMaSzNwCe0LO7bsUtE7T/ezT3heRoWANqpeD09KrxSgu8v4FV+x+PksGvb/msEMzgsMIHSmguoP2Fr/8a0DfTc+LDTIy891FdwtaYDDIjRMOcWjDfDzzuTVum/m[/tex]
- 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]
- 【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]
- 【计算题】5 ×8= 6×4= 7×7= 9×5= 2×3= 9 ×2= 8×9= 7×8= 5×5= 4×3= 5+8= 6 ×6= 3×7= 4×8= 9×3= 1 ×2= 9×9= 6×8= 8×0= 4×7=
- 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( )。