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

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 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

Let vec a and vec b be unit vectors such that |vec a+vec b|=sqrt(3). Then find the value of (2vec a+5vec b)*(3vec a+vec b+vec a xxvec 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,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 two vectors vec a and vec b are such that |vec a|=2,|vec b|=1 and vec avec b=1, then find rthe value of (3vec a-5vec b)2vec a+7vec b

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 vec a\ a n d\ vec b are two vectors such that | vec axx vec b|=3\ a n d\ vec adot vec b=1, find the angle between.

If vec a and vec b are two vectors such that |vec a+vec b|=|vec a|, then prove that vector 2vec a+vec b is perpendicular to vector vec b

If vec a and vec b are two vectors such that |vec a|=4,|vec b|=3 and vec a*vec b=6. Find the angle between vec a and vec b