Question: a Let A E Rm he a nonzero matrix. Determine whether an lohal solution to the least s uares l g '1] problem ismsnnlmyslli mean}

a Let A E Rm\" he a nonzero matrix. Determine whether an lohal solution to the least s uares l\" g '1] problem ismsnnlmyslli mean} (3) corresponds to an orthogonal projection of ya E R\" onto the range of A. {b} Suppose that A is a matrix such Ax g t} for an},r .'I.' 7E 0. Does it mean that the equation A: = 3; has a unique solution for any y '? Explain your answer in full. (e) Suppose that A is an n x m matrix full of zeros. Derive the MorePenrose pseudoinverse of A. Explain in detail non.r you obtain the result

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