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1. (a) Find the orthonormal vectors by the Gram-Schmidt (8pts) A = [ a1 a2 a3] 1 1 1 = 012 1 10 (b)

1. (a) Find the orthonormal vectors by the Gram-Schmidt (8pts) A = [ a1 a2 a3] 1 1 1 = 012 1 10 (b) Find the QR factorization of A. (4pts)

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