A) \[\lambda =-\frac{4}{5}\]
B) \[\lambda \ne -\frac{4}{5}\]
C) \[\lambda =2\]
D) \[\lambda \ne 2\]
Correct Answer: B
Solution :
For trivial solution,\[\left| \begin{matrix} 1 & -2 & 1 \\ 2 & -1 & 3 \\ \lambda & 1 & -1 \\ \end{matrix} \right|\ne 0\Rightarrow -5\lambda -4\ne 0\]or\[\lambda \ne -\frac{4}{5}\]You need to login to perform this action.
You will be redirected in
3 sec