If  are Any Three Non-coplanar Vectors, Then  is Equal To

If  are non-coplanar vectors and  are reciprocal vectors, then   

If  are non-zero and non-collinear vectors, then is equal to

If  is a unit vector such that   

 is equal to 

Let  be three vectors such that  If  be perpendicular to , then the value of l + m + n is   

If  is a unit vector, then  is equal to 

If  are only three non-coplanar vectors, then 

Let  be three vectors having magnitudes 1, 1 and 2 respectively such that  then the acute angle between 

If 

The length of the longer diagonal of the parallelogram constructed on  if it is given that  and 

If the vectors  make an obtuse angle for any x Ïµ (0, ∞), then c belongs to