Mark against the A. units

B. 5√3 units

C. units

D. 8√5 units

Given: The equations of the parallel planes are 2x – 3y + 6z = 5 and 6x – 9y + 18z + 20 = 0

To find: distance between the planes

Formula Used: Distance between two parallel planes ax + by + cz + d₁ = 0 and ax₁ + by₁ + cz₁ + d₁ = 0 is

Explanation:

The equations of the parallel planes are:

2x – 3y + 6z – 5 = 0

Therefore distance between them is

Therefore distance between the planes is units