Question: If the trivial solution is the only solution of the system of equations
$x-k y+z=0$
$k x+3 y-k z=0$
$3 x+y-z=0$
Then the set of all values of $k$ is:
$\{2,-3\}$
$\mathrm{R}-\{2,-3\}$
$\mathrm{R}-\{2\}$
$R-\{-3\}$
Correct Option: , 2
Solution:
