Find the angle between the planes 2x-y+z=6 and x+y+2z=7.

Find the angle between the two planes 2 x+y-2 z=5 and 3 x-6 y-2 z=7 using vector method.

Find the angle between the two planes 3 x-6 y+2 z=7 and 2 x+2 y-2 z=5

The angle between the planes x+y+z=1 and x-2y+3z=1 is

Find the distance between the planes x-2y+2z-8=0 and 6y-3x-6z=57

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

In th following cases, determine whether the given planes are parallel or perpendicular and in case they are neither, find the angle between them 2x-2y+4z+5=0 and 3x-3y+6z-1=0

Determine whether the given planes are parallel or perpendicular and in case they are neither, find the angle between them : 2x+y+3z-2=0 and x-2y+5=0

The angle between the lines 2x=3y=-zand6x=-y=-4z is