If #A = <2 ,3 ,-4 >#, #B = <5 ,1 ,4 ># and #C=A-B#, what is the angle between A and C?
1 Answer
Oct 20, 2016
Explanation:
To obtain the vector C, subtract the components of B from the respective components of a:
There are two ways to compute
The second way is:
where
We know the value of