[" 8.If unit ve ctor "(pi)/(2)" and "hat b" are inclioned "],[" at angle "theta" ,then proved that "],[sop^(2)m" is "a-b1=2sin theta]

If unit vectors hat(a) and hat(b) are inclined at angle theta , then prove that |vec(a) - vec(b)| = 2 sin.(theta)/(2) .

Unit vector hat(P) and hat(Q) are inclined at an angle theta . Prove that |hat(P)-hat(Q)|= 2 sin(theta//2) .

Unit vector hat(P) and hat(Q) are inclined at an angle theta . Prove that |hat(P)-hat(Q)|= 2 sin(theta//2) .

If hat a and hatb are two unit vectors inclined at an angle theta , then sin(theta/2)

If hat a and hatb are two unit vectors inclined at an angle theta , then sin(theta/2)

If veca and vecb are unit vectors inclined at an angle theta ,then prove that sin(theta/2)=1/2|veca-vecb|

If widehat a and hat b are unit vectors inclined at an angle theta then prove that (cos theta)/(2)=(1)/(2)|widehat a+hat b|(tan theta)/(2)=(|widehat a-hat b|)/(|widehat a+hat b|)

If hat aa n d hat b are unit vectors inclined at an angle theta , then prove that sintheta/2=1/2| hat a- hat b|dot

If widehat a and hat b are two unit vectors inclined at an angle theta, then sin((theta)/(2))

If widehat a and hat b are unit vectors inclined at an angle theta, then prove that cos(theta)/(2)=(1)/(2)|widehat a+hat b|tan(theta)/(2)=(1)/(2)|(widehat a-hat b)/(widehat a+hat b)|