Long Answer Type
, where O is any arbitrary point.
 is parallel to 
 where K divides AB in the ratio 1 : 3.
Let 
 be position vectors of A, B, C respectively.
     P.V. of D = 
     
                                         + (P.V. of F - P.V. of C)
       
     
. The straight lines FD and AE intersect at the point O. Find the ratio 
 and 
 can form the sides of a triangle. Find the lengths of the medians of the triangle.
Short Answer Type
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