The vectors `vec(a), vec(b) and vec(c) ` are related by `vec(c) = vec(a) + vec(b)` . Which diagram below illustrates this relationship ?

For any three vectors vec(a), vec(b) and vec(c) , show that vec(a) - vec(b), vec(b) - vec(c) , vec(c) - vec(a) are coplanar.

The non-zero vectors are vec a,vec b and vec c are related by vec a= 8vec b and vec c = -7vec b . Then the angle between vec a and vec c is

The non-zero vectors vec a , vec b and vec c are related by vec a=8 vec b and vec c = −7 vec b , then the angle between vec a and vec c is

The non-zero vectors are vec a,vec b and vec c are related by vec a= 8vec b and vec c = -7vec b . Then the angle between vec a and vec c is

The non-zero vectors are vec a,vec b and vec c are related by vec a= 8vec b and vec c = -7vec b . Then the angle between vec a and vec c is

The non-zero vectors are vec a,vec b and vec c are related by vec a= 8vec b and vec c = -7vec b . Then the angle between vec a and vec c is

The non-zero vectors vec a,vec b,vec c are related by vec a=8vec b and vec c=-7vec b then the angle between vec a&vec c

The non-zero vectors are vec a,vec b and vec c are related by vec a=8vec b and vec c=-7vec b. Then the angle between vec a and vec c is