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let A be an 8*5 matrix of rank 3, and let b be a nonzero vector in N(A^T) (1) show that the system Ax=b must be inconsistent (2) how many least squares solutions will the system Ax=b have? explain 請問有人會這兩題的證明嗎? 可以指點一下嗎 謝謝!! -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 218.166.117.216