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

Elementary Linear Algebra (MindTap Course List)
8th Edition
ISBN:9781305658004
Author:Ron Larson
Publisher:Ron Larson
Chapter3: Determinants
Section3.3: Properties Of Determinants
Problem 63E: Let A be an nn matrix in which the entries of each row sum to zero. Find |A|.
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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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