Prove that the planes #x+4y-3=1# and #-3x+6y+7z=0# are perpendicular to each other?
1 Answer
May 27, 2017
Planes are perpendicular to each other.
Explanation:
The normal to a plane
hence normal to
and normal to
and angle between planes is equal to angle between their normals.
As normals are
then
=
=
=
Hence.