Recent content by kdieffen

1) Well I understand the definition of a subspace, i think I am just finding it difficult to fully understand the proof. Would it be correct to say then that: WW is a subspace of Rn because i) It contains the zero vector ii) WW= {v1', v2',...vt'} Let x, y span (WW) x=av1' + av2' +...

Ok so I've been working on this problem and I'm really having some struggles grasping it. Here it is: Let W be some subspace of Rn, let WW consist of those vectors in Rn that are orthognoal to all vectors in W. 1) Show that WW is a subspace of Rn? So for this part I'm thinking that...