[" 31.If "bar(a)" and "bar(b)" are two unit vectors and "6" be the "],[" angle between them,then "sin((theta)/(2))=]

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

If bar(a) and bar(b) are two non-zero vectors and theta is angle between then,the cos theta is

If bar(a) and bar(b) are two non-zero vectors and theta is angle between then,the cos theta is

bar(a) and bar(b) are two unit vectors and theta be the angle between them then sin theta/2 : (A) |bar(a)-bar(b)| (B) |bar(a)+bar(b)| (C) (1)/(2)|bar(a)-bar(b)| (D) (1)/(2)|bar(a)+bar(b)|

Let hat(a), hat(b) be two unit vectors and 0 be the angle between them. What is sin ((theta)/(2)) 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(e_(1)) and vec(e_(2)) are two unit vectors and theta is the angle between them, then sin (theta/2) is:

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

Let hat(a), hat(b) be two unit vectors and theta be the angle between them. What is sin ((theta)/(2)) equal to ?