Recent content by ulysses1729

Here's a different approach. W is the space of polynomials a0+a1x+a2x2 this is really R3, or {a0 a1 a2}. Requiring that a0+a1+a2=0, is the same as requiring that the euclidean inner product of any element of W with {1 1 1} be zero. Hence the subspace W forms a plane in R3, namely the...