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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 …

Q1

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

\(k=3\) or -2

b

\(\mathrm{k}=0\) or -1

c

\(\mathrm{k}=1\) or -1

d

\(\mathrm{k}=0\) or -3

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