- #1
student 1
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Homework Statement
A. If A*B=-(1/2)AB, what do you know about A and B.
B. If A*B=5Ay-7Ax, find B.
Homework Equations
The Attempt at a Solution
Part A I know the angle is 120 degrees in between A and B. Would I know more about the two vectors from that?
Part B. I don't know where to begin to try and answer that?