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

If unit vectors veca and vecb are inclined at an angle 2 theta such that |veca - vecb| lt 1 and 0 le theta le pi , then theta lies in the interval

If | vec a+ vec b|<| vec a- vec b|, then the angle between vec aa n d vec b can lie in the interval a. (pi//2,pi//2) b. (0,pi) c. (pi//2,3pi//2) d. (0,2pi)

If vec aa n d vec b are two vectors, such that vec adot vec b<0a n d| vec adot vec b|=| vec axx vec b|, then the angle between vectors vec aa n d vec b is pi b. 7pi//4 c. pi//4 d. 3pi//4

If three unit vectors vec a , vec b ,a n d vec c satisfy vec a+ vec b+ vec c=0, then find the angle between vec aa n d vec bdot

If vec a ,a n d vec b be two non-collinear unit vector such that vec axx( vec axx vec b)=1/2 vec b , then find the angle between vec a ,a n d vec bdot

If the vectors vec aa n d vec b are linearly idependent satisfying (sqrt(3)tantheta+1 )veca+(sqrt(3)s e ctheta-2) vec b=0, then the most general values of theta are a. npi-pi/6, n in Z b. 2npi+-(11pi)/6, n in Z c. npi+-pi/6, n in Z d. 2npi+(11pi)/6, n in Z

Let the vectors vec aa n d vec b be such that | vec a|=3| vec b|=(sqrt(2))/3,t h e n vec axx vec b is a unit vector, if the angel between vec aa n d vec b is?

If vec aa n d vec b are two vectors of magnitude 1 inclined at 120^0 , then find the angle between vec ba n d vec b- vec adot

If vec aa n d vec b are unequal unit vectors such that ( vec a- vec b)xx[( vec b+ vec a)xx(2 vec a+ vec b)]= vec a+ vec b , then angle theta between vec aa n d vec b is 0 b. pi//2 c. pi//4 d. pi

If vec aa n d vec b are unit vectors such that ( vec a+ vec b).(2 vec a+3 vec b)xx(3 vec a-2 vec b)=0 , then angle between veca and vec b is a. 0 b. pi//2 c. pi d. indeterminate