JEE Main 2013Session, Shift 1MathematicsEasyThree Dimensional Geometry249× since 2002If the lines x−21=y−31=z−4−k{{x - 2} \over 1} = {{y - 3} \over 1} = {{z - 4} \over { - k}}1x−2=1y−3=−kz−4 and x−1k=y−42=z−51{{x - 1} \over k} = {{y - 4} \over 2} = {{z - 5} \over 1}kx−1=2y−4=1z−5 are coplanar, then kkk can have :AOption A. any valueBOption B. exactly one valueCOption C. exactly two valuesDOption D. exactly three valuesCheckSkip · show solution
