Consider the following planes.

Question

5x − 4y + z = 1, 4x + y − 5z = 5

a) Find parametric equations for the line of intersection of the planes.

b) Find the angle between the planes

Answer 1

mosey on over to

http://math.stackexchange.com/questions/475953/how-to-calculate-the-intersection-of-two-planes

and have a gander there.