Question

Show that the line passes through the points (1,-1,2) and (3,4,-2) is perpendicular to the line passes through the points (0, 3, 2) and (3, 5, 6).

Answer 1

The equation of line passing through points (1,-1,2) and (3, 4,-2) is

Equation of line passing through point (0, 3, 2) and (3, 5, 6)

Hence both lines are perpendicular.