Question: Factorize A in the form QR where Q is a matrix with orthonormal column vectors and R is an [1,0,-1,0]. Find the projection upper

Factorize A in the form QR where Q is a matrix with orthonormal column vectors and R is an [1,0,-1,0]. Find the projection upper triangular matrix with postive diagonal entries. Let u = of u on the column space W of A. Find the projection of u on the orthogonal complement of W. A= -3 1 -5 2 4

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