Determine whether the following pair of planes are parallel or perpendicular and in case they are neither find the angle between them: `3x-4y+5z=0 and 2x-y-2z=5`

Determine whether the following pair of planes are parallel or perpendicular and in case they are neither find the angle between them: 2x-y+3z-1=0 and 2x-y+3z+3=0

Determine whether the following pair of 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-10

Determine whether the following pasir of 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

Determine whether the following pasir of planes are parallel or perpendicular and in case they are neither find the angle between them: 4x+8y+z-8=0 and y+z-4=0

In the following cases, determine whether the given planes are parallel or perpendicular, and in case they are neither, find the angles between them.(a) 7x+5y+6z+30=0 and 3x-y-10 z+4=0 (b) 2x+y+3z-2=0 and x-2y+5z=0 (c) 2x-2y+4z+5=0 and 3x-3y+6z-1=0 (d) 2x-y+3z-1=0and 2x-y+3z+3=0 (e) 4x+8y+z-3=0and y+z-4=0

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

Find the angle between the plane: 2x-y+z=6 and x+y+2z=7

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

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

Find the angle between the plane: 2x-y+z=4\ a n d\ x+y+2z=3