Let ` vec ua n d vec v` be unit vectors such that ` vec uxx vec v+ vec u= vec w` and ` vec wxx vec u= vec vdot` Find the value of `[ vec u vec v vec w]dot`

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

Let vec u , vec va n d vec w be vectors such that vec u+ vec v+ vec w=0. If | vec u|=3,| vec v|=4a n d| vec w|=5, then vec udot vec v+ vec vdot vec w+ vec wdot vec u is 47 b. -25 c. 0 d. 25

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 , vec b , vec c be the three unit vectors such that vec a+5 vec b+3 vec c= vec0 , then vec a. ( vec bxx vec c) 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, 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

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 u and vec v are two vectors such that |vec u|=3,|vec v|=2 and |vec u xxvec v|=6 then the correct statement is

If vec u and vec v are two vectors such that vec u|=3;|vec v|=2 and |vec u xxvec v|=6 then the correct statement is