Find the position vector of the point which divides the join of the points 
and 
(i) internally and (ii) externally in the ratio 2 : 3.
Formula to be used – The point dividing a line joining points a and b in a ratio m:n internally or externally is given by 
respectively.
The position vector of the point dividing the line internally
The position vector of the point dividing the line externally
1