Proof Let V be an m-dimensional subspace of Rnsuch that m
Chapter 5, Problem 5.53(choose chapter or problem)
Proof Let V be an m-dimensional subspace of Rnsuch that m < n. Prove that any vector u in Rn can beuniquely written in the form u = v + w, where v is inV and w is orthogonal to every vector in V
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