If `vec a,vec b` are two unit vectors such that `|vec a +vec b|=2sqrt3` ,then the angle b

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

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

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

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 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-collinear unit vectors such that | vec a+ vec b|=sqrt(3), find (2 vec a-5 vec b). (3 vec a+ vec b) .

If vec a and vec b are two unit vectors such that vec a + 2 vec b and 5 vec a - 4 vec b are perpendicular to each other then the angle between vec a and vec b is