If are position vector of A and B respectively, then the position vector of a point C in AB produced such that
The vectors is
A null vector
Perpendicular to both
Perpendicular to
The angle between the vectors
π/2
π/4
π/3
0
If two vectors be such that , then the angle between them is
None of these
If θ is the angle between two unit vectors , then cos θ is equal to
1
-1
3
Let the vectors
A unit vector
