(a) Show that every diagonal matrix is symmetric. (b) Show that an upper (lower) triangular matrix is...

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(a) Show that every diagonal matrix is symmetric.
(b) Show that an upper (lower) triangular matrix is symmetric if and only if it is diagonal.
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Applied Linear Algebra

ISBN: 978-0131473829

1st edition

Authors: Peter J. Olver, Cheri Shakiban

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