If ` vec a , a n d vec b` are unit vectors , then find the greatest value of `| vec a+ vec b|+| vec a- vec b|dot`

If vec a\ a n d\ vec b are unit vectors then write the value of | vec axx vec b|^2+( vec adot vec b)^2dot

If vec a and vec b are unit vectorts,then the greatest value fo 3|vec a+vec b|+|vec a-vec b| is 2 b.2sqrt(2)c.4d .none of these

If vec a and vec b are any two unit vectors,then find the greatest positive integer in the range of (3|vec a+vec b|)/(2)+2|vec a-vec b|

If vec a and vec b are unit vectors find the angle between vec a+vec b and vec a-vec b

If vec(a) and vec(b) are unit vectors, then what is the value of |vec(a) xx vec(b)|^(2) + (vec(a).vec(b))^(2) ?

If vec a and vec b are two vectors such that |vec a xxvec b|=2, then find the value of [vec a,vec b,vec a xxvec b]

If vec A, vec B and vec C are mutually perpendicular vectors, then find the value of vec A. vec (B + vec C) .

If vec a,vec b, and vec c are unit vectors such that vec a+vec b+vec c=0, then find the value of vec a*vec b+vec b*vec c+vec c*vec a

If vec a , vec b are two vectors, then write the truth value of the following statements: vec a=- vec b| vec a|=| vec b| | vec a|=| vec b| vec a=+- vec b | vec a|=| vec b| vec a= vec b

If vec a and vec b are unit Vectors,then what is the angle between vec a and vec b so that sqrt(2)vec a-vec b is a unit vector?