A. 72
B. 48
C. 24
D. 12
A. 0
B. 1
C. 1.96
D. 2.58
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. z=ABx
B. z=BAx
C. x=ABz
D. x=BAz
A. INCLUDEPICTURE ＼d "https://p.ananas.chaoxing.com/star3/origin/8d20d56c6127cc96b7e82bf3b108e066.png" ＼* MERGEFORMATINET 
B. INCLUDEPICTURE ＼d "https://p.ananas.chaoxing.com/star3/origin/45716c0b86036041d966258ffc59f340.png" ＼* MERGEFORMATINET 
C. INCLUDEPICTURE ＼d "https://p.ananas.chaoxing.com/star3/origin/d44ccd518c7d8ce91bbdece690509d7a.png" ＼* MERGEFORMATINET 
D. INCLUDEPICTURE ＼d "https://p.ananas.chaoxing.com/star3/origin/13176250575a997b8b0dfa7183b109eb.png" ＼* MERGEFORMATINET 
A. e是割点
B. {a, e}是点割集
C. {b, e}是点割集
D. {d}是点割集
