Show that a diagonal matrix is invertible if and only if all the main diagonal entries are

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Show that a diagonal matrix is invertible if and only if all the main diagonal entries are nonzero. Describe the inverse.

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Linear Algebra With Applications

ISBN: 9780070985100

7th Edition

Authors: W. Keith Nicholson

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Question Posted: Jun 21, 2016 06:27 AM

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Show that a diagonal matrix is invertible if and only if all the main diagonal entries are

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If Bx 0 then ABx 0 so x 0 because ...View the full answer

Linear Algebra With Applications

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