In Exercises 17 and 18, A is an m × n matrix and b is in
Chapter 6, Problem 17E(choose chapter or problem)
In Exercises 17 and 18, A is an m × n matrix and b is in Rm. Mark each statement True or False. Justify each answer.a. The general least-squares problem is to find an x that makes Ax as close as possible to b. d. Any solution of ATAx = AT b is a least-squares solution of Ax = b.e. If the columns of A are linearly independent, then the equation Ax = b has exactly one least-squares solution.
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