Solved: Prove: If A is a diagonal illlitrix with nonzero di agonal el11ries {/11.{/ll

Chapter 1, Problem 47

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Prove: If A is a diagonal illlitrix with nonzero di agonal el11ries {/11.{/ll II" then A is nonsingu lar and A- I is a dillgonal malrix Wilh diagonal entries 1 / 11 11. l/ lIll ..... 1/,,"".

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