Text #5: Linear Independence and Spanning
Suppose V has a basis B = {u, v, w} (distinct vectors). Let S = {u + v, v + w, w + u} and T = {u + v, u - v, w}.
Additional Assumption: char(F) ≠2.
(a) Prove that S is linearly independent (using the definition of independence).
(b) Prove that T spans V (using the definition of span).
(c) Is SUT linearly independent? Does it span V? Explain.
(d) Is ST linearly independent? Does it span V? Explain.