question_answer

If the straight lines\[\frac{x-2}{1}=\frac{y-3}{1}=\frac{z-4}{0}\]and \[\frac{x-1}{k}=\frac{y-4}{2}=\frac{z-5}{1}\]are coplanar, then the value of\[k\]is

A)  \[-3\]                                   

B)  \[0\]     

C)  \[1\]                    

D)         \[-2\]

E)  \[6\]

Correct Answer: B

Solution :

Given lines, and   Let          and        Condition of coplanarity, ie, intersecting lines