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Birgitta April 14th, 2018 01:59 PM

Property of adjoint
 
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How to prove this property of adjoint? I checked it on few examples, but I don't know how to prove it rigorously.

johng40 April 14th, 2018 08:23 PM

Don't you know that $\det(kA)=k^n\det(A)$ for any $n\times n$ matrix A? A proof of your problem should follow immediately.


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