[" Show that the vectors "vec a,vec b" and "vec c" are coplanar "],[" if "vec a+vec b*vec b+vec c" and "vec c+vec a" are coplanar."]

Show that the vectors vec a, vec b and vec c are coplanar if vec a + vec b, vec b + vec c, vec c+ vec a are coplanar.

Show that the vectors vec a,vec b,vec c are coplanar if and only if vec a+vec b,vec b+vec c and vec c+vec a are coplanar.

Show that vectors vec a ,\ vec b ,\ vec c are coplanar if vec a+ vec b ,\ vec b+ vec c ,\ vec c+ vec a are coplanar.

Show that vectors vec a ,\ vec b ,\ vec c are coplanar if vec a+ vec b ,\ vec b+ vec c ,\ vec c+ vec a are coplanar.

Show that the vectors vec(a),vec(b) and vec( c ) coplanar if vec(a)+vec(b),vec(b)+vec( c ) and vec( c )+vec(a) are coplanar.

The vectors vec a,vec b,vec c,vec d are coplanar then

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

Show that vectors vec a,vec b,vec c are coplanar if vec a+vec b,vec b+vec c,vec c+vec a are coplanar.

If the three vectors vec a,vec b,vec c are coplanar, prove that the vectors vec a+vec b,vec b+vec c and vec c+vec a are also coplanar.

If vec a,vcb and vec c are non-coplanar vectors, then show that vec a+vec b,vec b+vec c and vec c+vec a are also non-coplanar