A、 (2,3,1)
B、 (-2,-3,1)
C、 (-2,-3,-1)
D、 (4,6,2)
答案：B
A、 (2,3,1)
B、 (-2,-3,1)
C、 (-2,-3,-1)
D、 (4,6,2)
答案：B
A. 9/11
B. 8/11
C. 2/5
D. 8/9
A. 矩阵A的一个特征向量只能属于A的一个特征值
B. 每个n阶矩阵均有特征向量
C. 属于矩阵A的不同特征值的特征向量一定线性无关
D. INCLUDEPICTURE ＼d "https://p.ananas.chaoxing.com/star3/origin/532db1edb5a03b0582fbf7d7c4c77695.png" ＼* MERGEFORMATINET 
A. 最多有n-1条
B. 至少有n-1条
C. 最多有n条
D. 至少有n条
B.
A. (2,3,1)
B. (-2,-3,1)
C. (-2,-3,-1)
D. (4,6,2)
A. 若干个可逆的n阶矩阵之积可逆,且其逆为这些矩阵的逆按相同顺序的乘积
B. 若A可逆,则 INCLUDEPICTURE ＼d "http://mooc1-api.chaoxing.com/ananas/latex/p/34176" ＼* MERGEFORMATINET 
的逆就是A本身。
C. INCLUDEPICTURE ＼d "https://p.ananas.chaoxing.com/star3/origin/59948f7de2981a3968f6f48a17b271e7.png" ＼* MERGEFORMATINET 
D. 若A是3阶矩阵,且方程 INCLUDEPICTURE ＼d "https://p.ananas.chaoxing.com/star3/origin/51b7a79a8c8b2da9d131cce3a4d20f8f.png" ＼* MERGEFORMATINET 
有唯一解,则A可逆
, INCLUDEPICTURE ＼d "http://mooc1-2.chaoxing.com/ananas/latex/p/581268" ＼* MERGEFORMATINET 
,则 INCLUDEPICTURE ＼d "http://mooc1-2.chaoxing.com/ananas/latex/p/320327" ＼* MERGEFORMATINET 
( )A. 0
B. (1,-1)
C. INCLUDEPICTURE ＼d "https://mooc1-2.chaoxing.com/ananas/latex/p/113749" ＼* MERGEFORMATINET 
D. INCLUDEPICTURE ＼d "http://p.ananas.chaoxing.com/star3/origin/67a557abb156385a453c741fec934ab8" ＼* MERGEFORMATINET 
矩阵,齐次线性方程组 INCLUDEPICTURE ＼d "http://mooc1-2.chaoxing.com/ananas/latex/p/181683" ＼* MERGEFORMATINET 
仅有零解的充要条件是 INCLUDEPICTURE ＼d "http://mooc1-2.chaoxing.com/ananas/latex/p/53238" ＼* MERGEFORMATINET 
A. 小于m
B. 小于n
C. 等于m
D. 等于n
