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A I Consider'a real matrix A 6 1Ran of full column rank 72. Show that the matrix P = A(ATA)-1AT is an orthogonal projector onto

A I Consider'a real matrix A 6 1Ran of full column rank 72. Show that the matrix P = A(ATA)-1AT is an orthogonal projector onto Ran(A). Hint: use the SVD of A

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