Question: please write clearly no cursive Problem 3. Consider the data Q A 1 1 1 0 i i R 4 1 1 _ '5 '5

please write clearly no cursive

Problem 3. Consider the data Q A 1 1 1 0 i i R 4 1 1 _ '5 '5 2 3 b 2 1 4 _ 1 _ 0 3 _ 5 2 6 1 1 _; _; 4 2 E (6) Use the (QR-factorization to nd the least-squares approximate solution E to An: = b. (5) Use the QRfactorization to find the projection of b onto Col(A). (c) Suppose that {q1, q2, q3, (14} is an orthonormal basis of R4 where {(11, (12} are the two columns of Q. Which {if any) of the four fundamental subspaces of A do {q3, (14} belong to

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