[" (5) let "vec a,vec b,vec c" be "3" vectors,such that "],[vec y+vec b+vec c" is als on unit vector of "],[" pairwise angles betweon "vec a,vec b,vec c" are "],[theta,quad Delta,quad hArr" ,respectively."],[" find cose,tes "theta_(2)+c0s_(3)" ."]

Let vec(a), vec(b), vec(c) are three unit vector such that vec(a)+vec(b)+vec(c) os also a unit vector. If pairwise angles between vec(a), vec(b), vec(c) are theta_(1), theta_(2) and theta_(3) respectively then cos theta_(1)+cos theta_(2)+ cos theta_(3) equals

Let vec(a), vec(b), vec(c) are three unit vector such that vec(a)+vec(b)+vec(c) os also a unit vector. If pairwise angles between vec(a), vec(b), vec(c) are theta_(1), theta_(2) and theta_(3) respectively then cos theta_(1)+cos theta_(2)+ cos theta_(3) equals

Let vec(a), vec(b), vec(c) are three unit vector such that vec(a)+vec(b)+vec(c) os also a unit vector. If pairwise angles between vec(a), vec(b), vec(c) are theta_(1), theta_(2) and theta_(3) respectively then cos theta_(1)+cos theta_(2)+ cos theta_(3) equals

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 .

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

If vec a , vec b , vec c are unit vectors such that vec a+ vec b+ vec c= vec0, then write 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, and 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

If vec a,vec b,vec c are unit vectors such that vec a+vec b+vec c=vec 0, then write 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