(a) Prove that if u is orthogonal to both v and w, thenu is orthogonal to v w.(b) Prove
Chapter 1, Problem 1.2.68(choose chapter or problem)
(a) Prove that if u is orthogonal to both v and w, thenu is orthogonal to v w.(b) Prove that if u is orthogonal to both v and w, thenu is orthogonal to sv tw for all scalars s and t.
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