Distance between two parallel planes `2x+y+2z` and `4x+2y+4z+5=0` (A) `3/2` (B) `9/2` (C) `7/2` (D) `5/2`

Distance between two parallel planes 2x+y+2z=8 and 4x+2y+4z+5=0 is

Distance between two parallel planes 2x+y+2z=8 and 4x+2y+4z+5=0 is (A) 7/2 (B) 5/2 (C) 3/2 (D) 9/2

Distance between two parallel planes 4x+2y+4z=5=0 and 2x+y+2z=8 is (A) 5/2 (B) 3/2 (C) 7/2 (D) 4/3

Find the distance between the parallel planes 2x-y+2z+3=0 and 4x-2y+4z+5=0

The distance between the parallel planes 4x-2y+4z+9=0 and 8x-4y+8z+21=0 is (A) 1/4 (B) 1/2 (C) 3/2 (D) 7/4

Distance between two parallel planes 2x+y+2z=8 and 4x+2y+4z+5=0 is (1) (5)/(2)(2)(7)/(2)(3)(9)/(2)(4)(3)/(2)