Directional Cosines #!#Examples#!#unit vector

Direction Cosine

Direction cosines

Find the direction cosines and unit vector along the vector vecr=2veci+vecj+3veck .

Find the direction cosines of the unit vector perpendicular to the plane vecr cdot (6hati- 3hatj -2hatk)=3, passing through origin.

If l,m,n are direction cosines of a line , then vector li +mj+nk is a

Direction cosines of of a vector

Unit Vector || Position Vector || Component OF Vector || Rectangular Component || Examples on Vector

Find the directional cosines of vector (5hati+2hatj+6hatk) . Also write the value of sum of squares of directional cosines of this vector.

Find the directional consines of vector (5hati+2hatj+6hatk) . Also write the value of sum of squares of directional cosines of this vector.

Assertion :- Unit vector is used to describe a direction in space. Reason :- Unit vector has a unit through its magnitude is one.