3阶矩阵的特征值为2，-3，1，主特征值为2。（）A.对B.错矩阵,特征值-找考题网

单项选择题There is a film which focuses upon the experiences of a German businessman who used his Nazi Party membership to create a protective International Safety Zone inNanking, China, helping to save thousands of Chinese from the Nanking Massacre in late 1937 and early 1938. The film is called _______________. A、Nanking, 1937 B、Nanking, Nanking C、The Flowers Of War D、John Rabe

3阶矩阵的特征值为2，-3，1，主特征值为2。（ ） A. 对 B. 错

3阶矩阵的特征值为2，-3，1，主特征值为2。（） A. 对 B. 错