一、题目
矩阵 $\left[\begin{array}{lll}0 & 0 & a \\ 0 & b & 0 \\ c & 0 & 0\end{array}\right]$ 的伴随矩阵为:
(A) $\left[\begin{array}{ccc}0 & 0 & -b c \\ 0 & -a c & 0 \\ -a b & 0 & 0\end{array}\right]$
(B) $\left[\begin{array}{ccc}0 & 0 & -a b \\ 0 & -a c & 0 \\ -b c & 0 & 0\end{array}\right]$
(C) $\left[\begin{array}{ccc}0 & 0 & -b c \\ 0 & a c & 0 \\ -a b & 0 & 0\end{array}\right]$
(D) $\left[\begin{array}{ccc}0 & 0 & -a b \\ 0 & a c & 0 \\ -b c & 0 & 0\end{array}\right]$
难度评级:
继续阅读“在选择题中求解伴随矩阵的两种常用方法”