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MIT 18.06 Linear Algebra, Spring 2010 10 Online
OpenStudy (anonymous):

Intro. to Linear Algebra 4th edition, Question#35: For B, how do we arrive at the conclusion that B^4=I if the eigenvalues of B^4 are 1,1? Thank you.

OpenStudy (anonymous):

well if the eigenvalues are merely \(1\)s that means our transformation is an isometry... what else do you know?

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