The image of plane `2x-y+z=2` in the plane mirror `x+2y-z=3` is (a)`x+7y-4x+5=0` (b) `3x+4y-5z+9=0` (c)`7x-y+2z-9=0` (d) None of these

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

Find the angle between two planes 2x+y-5z=0 and 4x -3y+7z=0

Find the angle between two planes 2x+y-5z=0 and 4x -3y+7z=0

Find the angle between two planes 2x+y-5z=0 and 4x -3y+7z=0

Image of sphere x^(2)+y^(2)+z^(2)=9 in plane 2x+3y+4z-29=0 is

The equation of the plane through intersectioof planes x=2y+3z=4 and 2x+y-z=-5 and perpendicular to the plane 5x+3y+6z+8=0 is (A) 7x-2y+3x+81=0 (B) 23x+14y-9z+48=0 (C) 51x+15y+50z+173=0 (D) none of these

The equation of the plane through the intersection of plane x+2y+3z=4 and 2x+y-z-5 and perpendicular to the plane 5x+3y+6z+8=0 is (A) 7x-2y+3z+81=0 (B) 23x+14y-9z+48=0 (C) 51x+15y+50z+173=0 (D) none of these