ç³»æ°ç©éµ A =
[2 3 1]
[1 -2 4]
[3 8 -2]
[4 -1 9]
è¡åçåæ¢ä¸º
[1 -2 4]
[0 7 -7]
[0 14 -14]
[0 7 -7]
è¡åçåæ¢ä¸º
[1 0 2]
[0 1 -1]
[0 0 0]
[0 0 0]
r(A) = 2,
åºç¡è§£ç³»å«çº¿æ§æ å
³è§£åéç个æ°æ¯
n - r(A) = 3 - 2 = 1 个
åºç¡è§£ç³»ä¸º (-2, 1, 1)^T
éè§£æ¯ x = k (-2, 1, 1)^Tï¼
å
¶ä¸ k 为任æ常æ°ã
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