Differential Equations and Linear Algebra (4th Edition)

Published by Pearson
ISBN 10: 0-32196-467-5
ISBN 13: 978-0-32196-467-0

Chapter 9 - Systems of Differential Equations - 9.9 The Phase Plane for Linear Autonomous Systems - True-False Review - Page 653: b

Answer

True

Work Step by Step

A linear system $x′ = Ax$ for which $A$ has complex eigenvalues $λ =\pm ib$ (for some b ∈ R) gives rise to elliptical trajectories in the phase plane. This is already justified in equation 9.9.7 in the textbook.
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