(2 3 1 4; 1 -2 4 -5; 3 8 -2 13;4 -1 9 -6 )化为最简形矩阵

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(2314;1-24-5;38-213;4-19-6)化为最简形矩阵(2314;1-24-5;38-213;4-19-6)化为最简形矩阵(2314;1-24-5;38-213;4-19-6)化为最简形

(2 3 1 4; 1 -2 4 -5; 3 8 -2 13;4 -1 9 -6 )化为最简形矩阵
(2 3 1 4; 1 -2 4 -5; 3 8 -2 13;4 -1 9 -6 )化为最简形矩阵

(2 3 1 4; 1 -2 4 -5; 3 8 -2 13;4 -1 9 -6 )化为最简形矩阵
r1-2r2,r3-3r2,r4-4r2
0 7 -7 14
1 -2 4 -5
0 14 -14 28
0 7 -7 14
r3-2r1,r4-r1,r1*(1/7),r2+2r1
0 1 -1 2
1 0 2 -1
0 0 0 0
0 0 0 0
再交换一下1,2行就行了