Question: let x be the solution of a least square problem that is written as an over-determined linear system Ax approx= b with A in R^(m*n);

let x be the solution of a least square problem that is written as an over-determined linear system Ax approx= b with A in R^(m*n); m>n. Let A=USV^T be the SVD of A. Express the solution x of the least square problem using the matrices U, S, V and the vector b

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