Let A [0.5 -0.5] 0.5 -0.5 0.5 0.5 0.5 0.5 (a) Solve the least squares problem Ax P= (c) Compute Ax and Pb Ax Note that the columns of A are orthonormal (why?). (b) Find the projection matrix P that projects vectors in R4 onto R(A) Pb = b where b 2 E -3

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Q: Find (a) the orthogonal projection of b onto Col A and (b) a least-squares solution of Ax = b. 8. 1…

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