If the lines and are perpendicular

MATHEMATICS · Subjective · CBSE · Mathematics · Three-Dimensional Geometry · Three-Dimensional Geometry

Problem

3. If the lines

\frac{x-1}{-3}=\frac{y-2}{2 k}=\frac{z-3}{2}

and

\frac{x-1}{3 k}=\frac{y-1}{1}=\frac{z-6}{-5}

are perpendicular, find the value of

k