If `\ vec a\ a n d\ vec b` are two unit vectors inclined at an angle `theta` such that `|a+b|,1,` then `theta(2pi)/3` c. `pi/3

If vec a\ a n d\ vec b are unit vectors inclined at an angle theta then the value of | vec a- vec b| is a. 2sin(theta/2) b. 2sintheta c. 2cos(theta/2) d. 2\ cos theta

If vec(a) and vec(b) are two unit vectors inclined at an angle pi/3 , then the value of |vec(a)+vec(b)| is

If vec a and vec b are unit vectos inclined at an angle theta then the value of |vec a-vec b| is 2(sin theta)/(2) b.2sin theta c.2(cos theta)/(2) d.2 cos

If vec(a) and vec(b) are two units vector inclined at an angle of (pi)/(3) , then value of |vec(a) + vec(b)| is

If unit vectors vec a and vec b are inclined at angle 2 theta such that |vec a-vec b|<1and0<=theta<=pi, then theta lies in interval a.[0,pi/6] b.[5 pi/6,pi] c.[pi/6,pi/2] d.[pi/2,5 pi/6]

Let vec a* vec b=0,w h e r e vec aa n d vec b are unit vectors and the unit vector vec c is inclined at an angle theta to both vec aa n d vec bdot If vec c=m vec a+n vec b+p( vec axx vec b),(m ,n , p in R), then a. -pi/4lt=thetalt=pi/4 b. pi/4lt=thetalt=(3pi)/4 c. 0lt=thetalt=pi/4 d. 0lt=thetalt=(3pi)/4

Let vec a* vec b=0,w h e r e vec aa n d vec b are unit vectors and the unit vector vec c is inclined at an angle theta to both vec aa n d vec bdot If vec c=m vec a+n vec b+p( vec axx vec b),(m ,n , p in R), then a.pi/4lt=thetalt=pi/4 b. pi/4lt=thetalt=(3pi)/4 c. 0lt=thetalt=pi/4 d. 0lt=thetalt=(3pi)/4

Let vec a* vec b=0,w h e r e vec aa n d vec b are unit vectors and the unit vector vec c is inclined at an angle theta to both vec aa n d vec bdot If vec c=m vec a+n vec b+p( vec axx vec b),(m ,n , p in R), then a. -pi/4lt=thetalt=pi/4 b. pi/4lt=thetalt=(3pi)/4 c. 0lt=thetalt=pi/4 d. 0lt=thetalt=(3pi)/4

Let vec a* vec b=0,w h e r e vec aa n d vec b are unit vectors and the unit vector vec c is inclined at an angle theta to both vec aa n d vec bdot If vec c=m vec a+n vec b+p( vec axx vec b),(m ,n , p in R), then a. -pi/4lt=thetalt=pi/4 b. pi/4lt=thetalt=(3pi)/4 c. 0lt=thetalt=pi/4 d. 0lt=thetalt=(3pi)/4

If unit vectors vec a and vec b are inclined at angle 2theta such that | vec a- vec b|<1a n d0lt=thetalt=pi ,t h e n theta lies in interval a. [0,pi//6) b. (5pi//6,pi] c. [pi//6,pi//2] d. [pi//2,5pi//6]