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Section 5.6 QR Factorization: Problem 6 Previous Problem Problem List Next Problem 2 1 —9 (1 point) Let A = 1 1 and b = —9 . The OR factorization of the matrixA is given by: 2 1 —3 2 1 2 1 5 ‘3 2 3 g _ 1 2 3 1 1 — 5 3 2 [0 ﬂ ] 2 1 2 _l 2 T 3 6 (a) Applying the QR factorization to solving the least squares problem AX = b gives the system: 5 555 3 5 x = 0 ﬂ === 3 I.- (b) Use backsubstitution to solve the system in part (a) and find the least squares solution.

July 30, 2019/in Questions Uploads /by admin

Section 5.6 QR Factorization: Problem 6 Previous Problem Problem List Next Problem
2 1 —9
(1 point) Let A = 1 1 and b = —9 . The OR factorization of the matrixA is given by:
2 1 —3
2 1
2 1 5 ‘3 2 3 g
_ 1 2 3
1 1 — 5 3 2 [0 ﬂ ]
2 1 2 _l 2 T
3 6 (a) Applying the QR factorization to solving the least squares problem AX = b gives the system: 5 555
3 5 x =
0 ﬂ === 3 I.- (b) Use backsubstitution to solve the system in part (a) and find the least squares solution.