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Problem 2 Let A denote the following matrix: 1 -1 -3 4 A = -9 -1 7 -26 5 1 -3 14 (a) Explain

Problem 2 Let A denote the following matrix: 1 -1 -3 4 A = -9 -1 7 -26 5 1 -3 14 (a) Explain how to calculate an orthogonal basis for Row(A) and do so. (b) Explain how to calculate the orthogonal projection of y = onto Row(A) and do so.

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