A hint to get started
Use a plane normal to measure distance and construct a perpendicular plane
The line passes through and . The plane has equation .
(i) Show is parallel to, but not contained in, .
(ii) Find the distance of from .
(iii) Find a Cartesian equation of the plane containing and perpendicular to .
[2010/JJC/I/7]
CJC · Discussion · Question 3
For a plane perpendicular to p, the normal of p can serve as a direction in the new plane.