If The Vector  bisects The Angle Between The Vector  and The Vector  then The Unit Vector In The Direction Of  is 

If OACB is a parallelogram with 

If G is the intersection of diagonals of a parallelogram ABCD and O is any point, then   

Let G be the centroid of âˆ† ABC. If  in terms of , is    

The position vectors of the points A, B, C are ,

 respectively. These points

If the points with position vectors  are collinear, then p = 

If the position vector of a point A is  divides AB in the ratio 2 : 3, then the position vector of B is   

If  are three non-zero vectors, no two of which are collinear and the vector  is collinear with  is collinear with , then  

If points  are collinear, then a is equal to 

 The vector  bisecting the angle AOB and C being a point on the line AB is