In Exercises 2130, matrices are n x n and vectors are in R n . Mark each

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In Exercises 21–30, matrices are n x n and vectors are in Rn. Mark each statement True or False. Justify each answer.

If A is symmetric and P is an orthogonal matrix, then the change of variable x = Py transforms xTAx into a quadratic form with no cross-product term.

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Linear Algebra And Its Applications

ISBN: 9781292351216

6th Global Edition

Authors: David Lay, Steven Lay, Judi McDonald

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