Recent content by flon

sorry if the intersection and union are both NOT subspaces?

Hey guys this is the question . Let A and B be vector subspaces of a vector space V . The intersection of A and B, A ∩ B, is the set {x ∈ V | x ∈ A and x ∈ B}. The union of A and B, A ∪ B, is the set {x ∈ V | x ∈ A or x ∈ B}. a) Determine whether or not A ∩ B is a vector subspace of V ...