If the lines \( \frac{x-2}{1}=\frac{y-3}{1}=\frac{z-4}{\lambda} \) ...
If the lines \( \frac{x-2}{1}=\frac{y-3}{1}=\frac{z-4}{\lambda} \) and \( \frac{x-1}{\lambda}=\frac{y-4}{2}=\frac{z-5}{1} \) intersect, then
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(1) \( \lambda=-1 \)
(2) \( \lambda=2 \)
(3) \( \lambda=-3 \)
(4) \( \lambda=0 \)
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