If `vec(A)` and `vec(B)` are two non`-`zero vectors such that `|vec(A)+vec(B)|=(|vec(A)-vec(B)|)/(2)` and `|vec(A)|=2|vec(B)|` then the angle between `vec(A)` and `vec(B)` is `:`

If vec A and vec B are two non-zero vectors such that |vec A+vec B|=(|vec A-vec B|)/(2) and |vec A|=2|vec B| then the angle between vec A and vec B is theta such that cos theta=-(m)/(n) (where m and n are positive integers and (m)/(n) lowest form then find m+n

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) and vec(b) are non-zero vectors such that vec(a) xx vec(b)= vec(b) xx vec(a) " then" vec(a), vec(b) are

If vec(a) and vec(b) are vectors such that |vec(a)|=sqrt(3), |vec(b)|=2 and vec(a).vec(b)=sqrt(6) 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)|=sqrt(2) and vec(a).vec(b)=-1 , find the angle between vec(a) and vec(b) .

For two vectors vec(a) and vec(b),|vec(a)|=4,|vec(b)|=3 and vec(a).vec(b)=6 find the angle between vec(a) and vec(b) .

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(a)xx vec(b)| , then angle between vector vec(a) and vector vec(b) is :