Find the angle between `vec A` & `vec B`, `vec B` & `vec C`, `vec C` & `vec A`

.Vectors vec A , vec B and vec c are shown in figure.Find angle between (i) vec A and vec B . (ii) vec A and vec C . , (iii) vec B and vec C

If vec A+vec B=vec C and the angle between vec A and vec B is 120^(@) , then the magnitude of vec C

If vec a , vec b , vec c are unit vectors such that vec a. vec b=0= vec a. vec c and the angle between vec b and vec c is pi/3, then find the value of | vec axx vec b- vec axx vec c| .

If vec a , vec b , vec c are unit vectors such that vec a. vec b=0= vec a. vec c and the angle between vec b and vec c is pi/3, then find the value of | vec axx vec b- vec axx vec c| .

The vector vec(A),vec(B) and vec( C ) are such that |vec(A)|=|vec(B)|,|vec( C )| = sqrt2|vec(A)| and vec(A) + vec(B) + vec( C ) =0. The angles between vec(A) and vec(B), vec(B) and vec( C ) respectively are

Three vectors vec(A), vec(B), vec(C) are shown in the figure. Find angle between (i) vec(A) and vec(B) (ii) vec(B) and vec(C) (iii) vec(A) and vec(C) .

If vec a, vec b and vec c are perpendicular to vec b + vec c, vec c + vec a, vec a + vec b respectively and if | vec a + vec b | = 6, | vec b + vec c | = 8 and | vec c + vec a | = 10 then find the value of vec a + vec b + vec c

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, and vec c are mutually perpendicular vectors of equal magnitudes,then find the angle between vectors vec a and vec a+vec b+vec c

Let vec(A), vec(B) and vec(C ) be unit vectors. Suppose vec(A).vec(B) = vec(A).vec(C ) = 0 and that the angle between vec(B) and vec(C ) is (pi)/(6) " then " vec(A) = +- n[vec(B) xx vec(C )] find the n