B is a n*n matrix(adsbygoogle = window.adsbygoogle || []).push({});

1. Let B^2 =B. Prove that either det(B) =1 or B is singular.

2. If Transpose(B) = B^-1 , what is det(B)?

Sorry I am asking, but I can't figure them out! I'd really like to improve my linear algebra skills.

Thanks!

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# 2. Some exercises

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