a. Let a = (0 -1 10), b = (2 0 20), and c = (4 1 30)
Compute a*b + b*c + c*a
b. Let a,b,c be vectors such that a*b + b*c + c*a = (-3 -12 4)
Find the area of the triangle whose vertices are a,b and c
c. Let a,b,c be three vectors that lie on the same line. Find a*b + b*c + c*a
I need some help with part one and the simple calculations before moving on to other parts for homework!
