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 p and vec d are two unit vectors and theta is the angle between them,then

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

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 vecx and vecy are two unit vectors and theta is the angle between them, then 1/2 | vecx - vec y| is :

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

If vec(a) and vec(b) are the 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 two unit vectors and theta is the angle between them, then the unit vector along the angular bisector of vec a and vec b will be given by

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