2-2r1, r3+r1, r4-5r1
1 2 4
0 -5 -5
0 3 5
0 -9 -9
r2*(-1/5),r3-3r2,r4+9r2
1 2 4
0 1 1
0 0 2
0 0 0
α1,α2,α3的秩为3, 线性无关, 极大无关组是其本身
满意请采纳^_^
2-2r1, r3+r1, r4-5r1
1 2 4
0 -5 -5
0 3 5
0 -9 -9
r2*(-1/5),r3-3r2,r4+9r2
1 2 4
0 1 1
0 0 2
0 0 0
α1,α2,α3的秩为3, 线性无关, 极大无关组是其本身
满意请采纳^_^