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试题 ID 5354
【所属试卷】
B站刘老师开讲《线性代数B》第四套期末模拟考试
若 $\left|\begin{array}{ll}a_{11} & a_{12} \\ a_{21} & a_{22}\end{array}\right|=6$, 则 $\left|\begin{array}{ccc}a_{11} & a_{12} & 0 \\ a_{21} & a_{22} & 0 \\ 0 & -2 & -1\end{array}\right|=$
A
12
B
-12
C
18
D
0
E
F
答案：
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解析：
答案与解析仅限VIP可见
若 $\left|\begin{array}{ll}a_{11} & a_{12} \\ a_{21} & a_{22}\end{array}\right|=6$, 则 $\left|\begin{array}{ccc}a_{11} & a_{12} & 0 \\ a_{21} & a_{22} & 0 \\ 0 & -2 & -1\end{array}\right|=$ <div> 12 -12 18 0 </div> <br /> <br /> <b>答案</b> <div> 答案与解析仅限VIP可见 </div> <br /> <br /> <b>解析</b> <div> 答案与解析仅限VIP可见 </div>