Question

bisectors of angle between two planes:​

Answer 1

Answer:

So 25x + 17y + 62z – 78 = 0 is the plane bisecting the angle containing the origin, and x + 35y – 10z – 156 = 0 is the other bisecting plane. ... Hence the plane 25x + 17y + 62z – 78 = 0 bisects the acute angle and therefore origin lies in the acute angle.