#1: a) Find the magnitude and direction of Vector R that is sum of the three vectors A, B, and C.
b) Find the magnitude and direction of the vector S=C-A-B.
A = Red
B = Blue
C = Green
2. Vectors A and B are drawn from a single point and C = A + B. If C^2 = A^2 + B^2 show that the angle between A and B is 90 degrees. If C^2 > A^2 + B^2 show that angle is greater than 90. If C^2 < A^2 + B^2 show that angle is smaller than 90.
The second one is just because I just suck at proofs ;; I tend to skip steps, and confuse myself.