If the system of equations $x+ky+3z=-2$, $4x+3y+kz=14$, and $2x+y+2z=3$ can be solved by the matrix inversion method, then:

  • A
    $k \neq 0$ and $\frac{9}{2}$
  • B
    $k = 0$ or $\frac{9}{2}$
  • C
    $k \neq \frac{1}{2}$ and $2$
  • D
    $k = \frac{1}{2}$ or $2$

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The system of equations $kx + y + z = 1$,$x + ky + z = k$,and $x + y + kz = k^2$ has no solution if $k$ is equal to

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