What is the length of the vector (1, 1) ?

Point P is the endpoint of vector OP and point Q is the endpoint of vector OQ. When the vectors bar(OP) and bar(OQ) are added, what is the length of the resultant vector ?

If A(-1,3),B(1,-1) and C(5,1) are the vertices of a triangle ABC, what is the length of the median through vertex A ?

The length of the projection of the vector (1,-2,-1) on the vector joining the points (2,2,-6) and (6,-2,1) is

What does the length of the line in geometrical representation of a vector signify?

The unit vector in the direction of the sum of the vectors (1, 1, 1),(2, -1,-1) and (0, 2, 6) ………..