Example 16 Find the coordinates of the foot of the perpendicular drawn from the
origin to the plane 2x – 3y + 4z – 6 = 0 Solution Let the coordinates of the foot of the perpendicular P from the origin to the
plane is (x1, y1, z1) (Fig 11 11) Then, the direction ratios of the line OP are
x1, y1, z1