Let ` vec aa n d vec b` be unit vectors such that `| vec a+ vec b|=sqrt(3)` . Then find the value of `(2 vec a+5 vec b)dot(3 vec a+ vec b+ vec axx vec b)dot`

If vec a,vec b are two unit vectors such that |vec a+vec b|=2sqrt(3) ,then the angle b

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

Let vec a and vec b be two unit vectors such that |vec a+vec b|=sqrt(3) if vec c=vec a+2vec b+3(vec aXvec b) then 2|vec c| is equal to

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|=1=|vec b| and |vec a + vec b|=sqrt3 then evaluate (2 vec a - vec b) * (3 vec a + vec b) .

If vec a and vec b are two non-collinear unit vectors such that |vec a+vec b|=sqrt(3), find (2vec a-5vec b)*(3vec a+vec b)

If vec a and vec b are two non collinerar unit vectors and if | vec a+ vec b | = sqrt 3 , then find the value of (vec a-vec b). (2 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,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