If #A = <3 ,-1 ,8 >#, #B = <4 ,-3 ,-1 ># and #C=A-B#, what is the angle between A and C?
C= A - B: C=
Angle between A and C:
This is called the Dot product, Scaler product or Inner product and is defined as:
We need to sum the components in the product vector, so:
So now we have:
The angle is formed where the vectors are moving in the same relative direction. i.e where both arrow heads are pointing.