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

If vec(A) + vec(B) = vec(C ) and A + B = C , then the angle between vec(A) and vec(B) is :

If vec(A) xx vec(B) = 0 and vec(B) xx vec(C ) = 0 , the angle between vec(A) and vec(C ) is :

If angle between vec(a) and vec(b) is (pi)/(3) , then angle between 2bar(a) and -3vec(b) is

If vec(a).vec(b) and vec(c ) are unit vectors such that vec(a) is perpendicular to the plane of vec(b) , vec(c ) and the angle between vec(b) and vec(c ) is (pi)/(3) . Then what is |vec(a) +vec(b)+vec(c )| ?

If vec(a) , vec(b), vec(c) are unit vectors such that vec(a) is perpendicular to the plane of vec(b), vec(c) , and the angle between vec(b) and vec(c) is (pi)/(3) Then, what is |vec(a)+vec(b)+vec(c)| ?