Reduce the equation of the plane x + 2y – 2z – 9 = 0 to the normal form and hence find the length of the perpendicular drawn form the origin to the given plane.

Find the length of the perpendicular drawn from the origin to the plane 4x-y+7z+2=0

Find the length of the perpendicular drawn from the origin to the plane 2x-3y+6z+21=0

Find the length of the perpendicular drawn from the origin to the plane 2x \ 3y+6z+21=0.

Find the length of the perpendicular drawn from the origin to the plane 2x - 3y+6z+21=0.

Reduce the equation of the plane x-2y-2z=12 to normal form and hence find the length of the perpendicular for the origin to the plane. Also, find the direction cosines of the normal to the plane.

Reduce the equation of the plane x-2y-2z=12 to normal form and hence find the length of the perpendicular for the origin to the plane. Also, find the direction cosines of the normal to the plane.

Reduce the equation of plane 2x - 4y + 4z + 15 =0 to its normal form.

Reduce the equation of a plane 6x + 3y - 2z = 14 to its normal form.

Find the equation of the perpendicular drawn from the origin to the plane 2x+4y-5z=10 .