If vec(a) and vec(b) are unit vectors, a...

If `vec(a)` and `vec(b)` are unit vectors, and `theta` is the angle between them, then `|vec(a)-vec(b)|` =

A

`sin""(theta)/(2)`

B

`2sin""(theta)/(2)`

C

`2cos""(theta)/(2)`

D

`cos""(theta)/(2)`

Verified by Experts

The correct Answer is:

B

Similar Questions

Explore conceptually related problems

If vec a and vec b are unit vectors,and theta is the angle between them,then |vec a-vec b|=

If vec(u) and vec(v) are unit vectors and theta is the actue angle between them, then 2vec(u) xx 3vec(v) is a unit vector for

Let vec(a) and vec(b) be two unit vectors and theta is the angle between them. Then vec(a)+vec(b) is a unit vector if :

If vec a and vec b are unit vectors and theta is the angle between them,then prove that cos[(theta)/(2)]=(1)/(2)|vec a+vec b|

If vec(a) and vec(b) are unit vectors and theta is the angle between them, then what is sin^(2)((theta)/(2)) equal to?

If vec(a) and vec(b) are unlike vectors, then the angle between them is :

If vec a and vec b are two unit vectors and theta be the angle between them,then sin((theta)/(2))=

If vec x and vec y are two unit vectors and theta is the angle between them,then (1)/(2)|vec x-vec y| is equal to

If vec(e_(1)) and vec(e_(2)) are two unit vectors and theta is the angle between them, then sin (theta/2) is:

If vec a and vec b are unit vectors and 60^(@) is the angle between them,then (2vec a-3vec b)*(4vec a+vec b) equals