Question: 2 . Let A = 2 4 2 3 4 6 1 2 . Use the QR factorization A = QR = 2 / 5

2. Let A =
24
23
46
12
. Use the QR factorization A = QR =
2/54/5
2/51/5
4/52/5
1/52/5
58
01
to find the least-squares solution of Ax =
1
7
3
6
.

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