Find the equation of a plane which passes through (2, –3, 1) and is perpendicular to the line through the points (3, 4, –1) and (2,–1, 5).
Find the angle between the planes
2x – y + z = 6 and x + y + 2z = 7
The equation of two planes are
2 x – y + z = 6
and x + y + 2 z = 7
Let θ be the angle between the planes