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Q)

The lines $\frac{x-2}{1} = \frac{y-3}{1} = \frac{z-4}{-k}$ and $\frac{x-1}{k} = \frac{y-4}{2} = \frac{z-5}{1}$ are coplanar if :


( A ) $k=1$ or $-1$
( B ) $k=3$ or $-3$
( C ) $k=0$ or $-1$
( D ) $k=0$ or $-3$

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