A) 7
B) -7
C) \[\frac{1}{7}\]
D) 11
Correct Answer: D
Solution :
\[K=\,|A|\]; \[|A|\,\,=\left| \,\begin{matrix} 3 & 2 & 4 \\ 1 & 2 & -1 \\ 0 & 1 & 1 \\ \end{matrix}\, \right|\,=\,\,11\].You need to login to perform this action.
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