question_answer 1)

Distance between the two planes 2x = 3y + 4z = 4 and 4x + 45y + 8z = 12 is              (a) 2 units    (b) 4 untis  (c) 8 units units.  

Answer:

Let P(x1, y1, z1) be any point on be plane                        2x + 3y + 4z  = 4                               ..(1)       Length of the perpendicular from P(x12, y1, z1) to 4x + 6y + 8z = 12 is given by                                      is correct