If the trivial solution is the only solution of the system of equat...

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If the trivial solution is the only solution of the system of equations
\( \mathrm{P} \) \( \mathrm{x}-\mathrm{ky}+\mathrm{z}=0, \mathrm{kx}+3 \mathrm{y}-\mathrm{kz}=0,3 \mathrm{x}+\mathrm{y}-\mathrm{z}=0 \) Then the set of all values of \( \mathrm{k} \) is:

W
(1) \( \{2,-3\} \)
(2) \( \mathrm{R}-\{2,-3\} \)
(3) \( \mathrm{R}-\{2\} \)
(4) \( R-\{-3\} \)
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