32. a) Determine the vector equation of the line of intersection of these 2 planes: (i) X+2y+z=3 [3marks] 2x y z = 4 b) Determine, showing steps, whether the line [x.y,z] = [iiiii] + t E \"5 5' 5 ' on the plane: x + '7y + 42 = 14 [3 marks]