Show that the lines and are perpendicular to each other.

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

Problem

11. Show that the lines

\frac{x-5}{7}=\frac{y+2}{-5}=\frac{z}{1}

and

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

are perpendicular to each other.