In each case below either prove that the statement is True or
disprove it by giving an example showing that it is False.
(i) If B is a fixed 2 × 2 matrix, then the set U = {A|A ∈ M22,
AB = 0} is a subspace of M22. T or F
(ii) If u, v, w are vectors in a vector space V , then span {u,
v, w} = span {u + v, u + w, v +...