Let D = P'AP be a diagonal matrix, wher %3D Pesell thet if D:

Linear Algebra: A Modern Introduction
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ISBN:9781285463247
Author:David Poole
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Chapter4: Eigenvalues And Eigenvectors
Section4.4: Similarity And Diagonalization
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6.
Let D = P-'AP be a diagonal matrix, where P is an orthogonal matrix. Show
that A is symmetric. Recall that if D is a diagonal matrix, then D" = D.
Transcribed Image Text:6. Let D = P-'AP be a diagonal matrix, where P is an orthogonal matrix. Show that A is symmetric. Recall that if D is a diagonal matrix, then D" = D.
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