1.
vector a = (2, -6, 5) and vector b = (-1, -2, 0):
find the area of a parallelogram with point 0, a, b and a+b
2.
Find the point where the line passing through (2, -1, 5) and (0, 4, 2) intersects plane 2x+y+z = 1
1. The area of the parallelogram is 3*sqrt(5).
2. The point of intersection is (3,-7,-1).
