if | - 6 , ,1 , , ,0 , , , ,3 , ,7 - 1 , ,0 , ,5 | = 5948 , then … - Vidyadip

Question

if $\left| \begin{gathered}
- 6\ \ \,\,1\ \ \,\,\lambda \ \ \hfill \\
\,0\ \ \,\,\,\,3\ \ \,\,7\ \ \hfill \\
- 1\ \ \,\,0\ \ \,\,5\ \ \hfill \\
\end{gathered} \right| = 5948 $, then $\lambda $ is

✓

Answer

c
$\left|\begin{array}{ccc}{-6} & {1} & {\lambda} \\ {0} & {3} & {7} \\ {-1} & {0} & {5}\end{array}\right|=5948$

on expansion $\Rightarrow \lambda=2015$

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