Find the equation of the plane mid - parallel to the planes 2x – 3y + 6z + 21 = 0 and 2x – 3y + 6z – 14 = 0
Formula : The equation of mid parallel plane is , say
Plane 1:ax + by + cz + d1 = 0 &
Plane 2:ax + by + cz + d2 = 0 is given by the formula
where () are constants of the planes
Therefore ,
First Plane 2x – 3y + 6z + 21 = 0 …… (1)
Second plane 2x – 3y + 6z – 14 = 0 …… (2)
Using equation (1) and (2)
Mid parallel plane
4x – 6y + 12z + 7 = 0