If `|veca| = 1, |vec b| = 2, |vec c| = 3 and vec a +vec b +vec c = 0` , then the value of `vec a * vec b +vec b. vec c +vec c* vec a` equals

If |vec a| = 3, |vec b| = 5, and |vec c| = 4 and vec a + vec b + vec c = vec O then the value of (vec a . vec b + vec b . vec c + vec c .vec a ) =

If? B, c are three vectors such that | vec a | = 5, | vec b | = 12 and | vec c | = 13 and vec a + vec b + vec c = 0 then vec a * vec b + vec b * vec c + vec c * vec a

If vec a, vec b, vec c are unit vectors such that vec a + vec b + vec c = vec 0 , then the value of vec a . vec b + vec b.vec c + vec c vec a is equal to

If vec a, vec b, vec c are three vectors such that vec a + vec b + vec c = vec 0 and |vec a| = 2, |vec b| = 3, |vec c| = 5 , then the value of vec a . vec b + vec b . vec c + vec c . vec a =

If vec a,vec b,vec c are unit vectors such that vec a+vec b+ vec c= vec 0 , then the value of vec a *vec b +vec b* vec c+ vec c*vec a is equal to

If |vec(a)|=3, |vec(b)|=1, |vec(c )|=4 and vec(a) +vec(b) + vec( c)=0 , then the value of vec(a).vec(b) + vec(b).vec(c )+vec(c ).vec(a) is equal to

If vec a, vec b, vec c are unit vectors such that vec a+ vec b+ vec c =0 , find the value of vec a.vec b+ vec b .vec c + vec c. vec a .

If vec a, vec b, vec c are unit vectors such that vec a+ vec b+ vec c = vec 0 , then find the value of vec a* vecb + vec b* vec c +vec c* veca .

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

vec a , vec b , vec c are unit vectors such that vec a+ vec b+ vec c=0. then find the value of vec a. vec b+ vec b.vec c+ vec c. vec a