(a) Find the perpendicular distance from the point (1,8) to the line 3x+y-2z 5 (b) Find the distance between the paralellel planes given by the equations x+2y _ z = 3 and 3x 6y-3 15 (c) Find parametric equation for the line of intersection of the planes given by the equations 2x + y + 5z=4and -x+3y + z = 3