How to Prove the Eigenvalue Property of CrA(x)?

John Smith
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I hava a problem finding out how this is showned

If A is n x n and r is not 0.

Show that CrA(x) = (r^n) * CA(x/r)

What rule should I think of in defanition.
 
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Its okey I did find it out.
 
Thank goodness for that because what you wrote didn't make any sense. A is an n by n matrix valued function of x? What is C? And what does this have to do with eigenvalues?
 
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