A) 3
B) 2
C) ? 3
D) ? 2
Correct Answer: C
Solution :
Since \[\left| \begin{matrix} -12 & 0 & \alpha \\ 0 & 3 & -1 \\ 2 & 1 & -15 \\ \end{matrix} \right|=546\Rightarrow \alpha =-3.\]You need to login to perform this action.
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