Question: 2. Let 1 -1 4 4 -1 4 -2 2 0 (a) Find the (reduced) QR factorization of A by hand. That is, A

2. Let 1 -1 4 4 -1 4 -2 2 0 (a) Find the (reduced) QR factorization of A by hand. That is. A = QR, where Q is

2. Let 1 -1 4 4 -1 4 -2 2 0 (a) Find the (reduced) QR factorization of A by hand. That is, A = QR, where Q is a 4 by 3 left-orthogonal matrix and R is a 3 by 3 upper-triangular matrix. (b) Verify your answer using MATLAB.

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