线性代数求解答!求过程,这节没学好, 15题的第(1)小题和16题! 求帮助
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A =
1 1 1 1
1 1 0 2
1 0 0 -3
A =
1 1 1 1
0 0 -1 1
0 -1 -1 -4
A =
1 1 1 1
0 -1 -1 -4
0 0 -1 1
A =
1 1 1 1
0 1 1 4
0 0 1 -1
A =
1 1 0 2
0 1 0 5
0 0 1 -1
A =
1 0 0 -3
0 1 0 5
0 0 1 -1
∴a1,a2,a3是极大线性无关组
a4 = -3a1 + 5a2 - a3
1 1 1 1
1 1 0 2
1 0 0 -3
A =
1 1 1 1
0 0 -1 1
0 -1 -1 -4
A =
1 1 1 1
0 -1 -1 -4
0 0 -1 1
A =
1 1 1 1
0 1 1 4
0 0 1 -1
A =
1 1 0 2
0 1 0 5
0 0 1 -1
A =
1 0 0 -3
0 1 0 5
0 0 1 -1
∴a1,a2,a3是极大线性无关组
a4 = -3a1 + 5a2 - a3
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第十六题呐
追答
A =
1 0 3 1 2
-1 3 0 -1 1
2 1 7 2 5
4 2 14 0 6
=
1 0 3 0 1
0 1 1 0 1
0 0 0 1 1
0 0 0 0 0
a1,a2,a4是极大线性无关组
a3 = 3a1 + a2
a5 = a1 + a2 + a4
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