Find a subset of the given vectors V1 = (1,-1, 5, 2), v2 = (-2,3, 1,0), V4 = (0, 4, 2, 3), U5 = (-7, 18, 2, 8) V3 = (4, 5, 9, 4), %3D that form a basis for the space spanned by these vectors, and then express each vector that is not in the basis as a linear combination of the basis vectors.