Use Example 6 to list the eigenvalues of A. In each case, the transformation x Ax

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Use Example 6 to list the eigenvalues of A. In each case, the transformation x ↦ Ax is the composition of a rotation and a scaling. Give the angle φ of the rotation, where -π < φ ≤ π, and give the scale factor r.


Data from in Example 6 

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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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