Find the plane which bisects the obtuse angle between the planes `4x-3y+12z+13=0 and x+2y+2z=9`

The equation ofthe plane which bisects the angle between the planes 3x-6y+2z+5=0 and 4x-12y+3z-3=0 which contains the origin

The angle between the planes 3x-4y+5z=0 and 2x-y-2z=5 is

Find the angle between the planes -x+y+2z=9 and x+2y+z=5

Find the angle between the planes -x+y+2z=9 and x+2y+z=5

Find the angle between the planes x-y+2z=9 and 2x+y+z=7.

The angle between the planes x+2y+2z =3 and -5x+3y+4z = 9 is

Find the angle between the plane x-y+2z=9 and 2x+y+z=7

Find the angle between the planes x-y+2z=9 and 2x+y+z=7 .

Find the angle between the planes x-y+2z=9 and 2x+y+z=7 .