" Q.1.If "vec A.vec B=|vec A timesvec B|" then what is the angle between "vec A" and "vec B

If |vec A + vec B|= |vec A|+|vec B| , then what is the angle between vec A and vec B .

If vec A.vec B= |vec A xx vec B|, find the value of angle between vec A and vec B .

Two vectors vec(A) and vec(B) are such that |vec(A)+vec(B)|=|vec(A)-vec(B)| then what is the angle between vec(A) and vec(B) :-

Two vectors vec(A) and vec(B) are such that |vec(A)+vec(B)|=|vec(A)-vec(B)| then what is the angle between vec(A) and vec(B) :-

(vec a.vec b)vec c

If |vec a - vec b| = |vec a| = |vec b| =1 then the angle between vec a and vec b is

If vec(a) and vec(b) are two vectors such that |vec(a) xx vec(b)| = vec(a).vec(b) , then what is the angle between vec(a) and vec(b) .

If |vec a|+|vec b|=|vec c| and vec a+vec b=vec c, then find the angle between vec a and vec b

If vec a,vec b are two vectors such that vec a.vec b <0 and |vec a.vec b| = |vec axxvec b| then the angle between vec a and vec b is

If vec a and vec b are two vectors, such that vec a.vec b <0 and | vec a.vec b|=| vec axx vec b|, then the angle between vectors vec a and vec b is a. pi b. 7pi//4 c. pi//4 d. 3pi//4