A) \[\mu \]only
B) \[\lambda \]only
C) \[\lambda \]and \[\mu \] both
D) Neither \[\lambda \]nor \[\mu \]
Correct Answer: A
Solution :
For unique solution of the given system \[D\ne 0\] \[\left| \,\begin{matrix} 1 & 1 & 1 \\ 5 & -1 & \mu \\ 2 & 3 & -1 \\ \end{matrix}\, \right|\ne 0\]. So this depends on \[\mu \] only.
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