If ` vec b` is a unit vector such that `( vec a+ vec b)dot( vec a- vec b)=8,\ `find`\ | vec a|dot`

12. If vec a&vec b, are unit vectors such that vec lvec a-vec b|=sqrt(3), then find |vec a+vec b|

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

If vec a and vec b are two vectors such that (vec a+vec b)vec a-vec b=0 find the relation between the magnitudes of vec a and vec b

Given |vec a|=|vec b|=1and|vec a+vec b|=sqrt(3). If vec c is a vector such that vec c-vec a-2vec b=3(vec a xxvec b), then find the value of vec cvec b

Let vec a and vec b be unequal unit vectors such that vec a*((vec a-vec b)times(3vec a-4vec b))=vec a+vec b then the angle between vec a&vec b is

Let vec a and vec b be unequal unit vectors such that vec a.((vec a-vec b)times(3vec a-4vec b))=vec a+vec b then the angle between vec a&vec b is

If vec a and vec b are unit vectors such that |vec a xxvec b|=vec a.vec b then |vec a-vec b|^(2) is equal to

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

If vec a and vec b are two vectors,such that |vec a|=2,|vec b|=1 and vec a*vec b=1, then find (3vec a-5vec b)*(2vec a+7vec b)

If two vectors vec a and vec b are such that |vec a|=2,|vec b|=1 and vec a*vec b=1, find (3vec a-5vec b)*(2vec a+7vec b)