Question: Please show your work. It helps a lot! 2 -3 (1 point) Let A = |1 and b = 3 |. The QR factorization of

Please show your work. It helps a lot!

2 -3 (1 point) Let A = |1 and b = 3 |. The QR factorization of the matrix A is given by: 2 6 -1V2 w = 3 V/2 2 WIN W/ - W/ N 2 0 3 (a) Applying the QR factorization to solving the least squares problem Ax = b gives the system: w X = 0 w (b) Use backsubstitution to solve the system in part (a) and find the least squares solution. X =

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