Answer
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Work Step by Step
We can take a scalar multiple of the matrix P because the product includes both the P matrix itself and the inverse of the P matrix.
$P_2=\begin{bmatrix}
4&2\\-2&-2
\end{bmatrix}=2P$
Linear Algebra and Its Applications (5th Edition)
by Lay, David C.; Lay, Steven R.; McDonald, Judi J.
Published by
Pearson
ISBN 10:
032198238X
ISBN 13:
978-0-32198-238-4
Chapter 5 - Eigenvalues and Eigenvectors - 5.3 Exercises - Page 289: 30
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