If 
are position vectors of the points A, B and C respectively, write the value of 
.
Any vector 
, if the position vectors of point A (
) and B (
) are known, can be written as 
.
Since the position vectors of points A, B, C are 
, we get
1
If are position vectors of the points A, B and C respectively, write the value of .
Any vector , if the position vectors of point A () and B () are known, can be written as .
Since the position vectors of points A, B, C are , we get