True or false: (a) If Q is an improper 2 2 orthogonal matrix, then Q2 =

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True or false:
(a) If Q is an improper 2 × 2 orthogonal matrix, then Q2 = I.
(b) If Q is an improper 3 × 3 orthogonal matrix, then Q2 = I.
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Applied Linear Algebra

ISBN: 978-0131473829

1st edition

Authors: Peter J. Olver, Cheri Shakiban

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