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(a) Use the Gram-Schmidt process to find an orthonormal basis for the column space of A. (b) Factor A into a product QR, where

(a) Use the Gram-Schmidt process to find an orthonormal basis for the column space of A. (b) Factor A into a product QR, where Q has an orthonormal set of column vectors and R is upper triangular. 1 4 1 A = 2 3 2 -2 2 1

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