
线 性 代 数 综 合 练 习 题 (二). ;. 。. 2 、设. 则存在可逆阵 P ,使 P -1 AP=B ,其中. P=. 。. 一、填空题. 1 、四阶方阵 A 的特征值为 1 、 3 、 4 、 5 ,. 3 、已知四阶行列式 D 的第三行 元素分别为 -1 , 3 , 2 , 0 ,第 二行元素的余子式依次为 5 , -2 , , 4 ,则 = 。. 解得. 解: 因为行列式第三行元素与第二行元素对应的代数余子式乘积之和为零,所以有.
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