Question: Please help 3. Show directly that the following matrix requiring a row exchange can not be factored into L and U: 1 0 0 0

Please help

Please help 3. Show directly that the following matrix requiring a row

3. Show directly that the following matrix requiring a row exchange can not be factored into L and U: 1 0 0 0 d e 1 1 2 0 h 1 2 m n Hint: Compute the product LU and show that an attempt to find values for the unknowns leads to an inconsistency

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