• 试题 ID 34950


计算$\left|\begin{array}{cccc}
a & 0 & -1 & 1 \\
0 & a & 1 & -1 \\
-1 & 1 & a & 0 \\
1 & -1 & 0 & a
\end{array}\right|$
A
B
C
D
E
F
答案:

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解析:

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