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Jul
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comment What is the correct way to solve $|2K^3-2K^4|$ determinant?
Of course.. Totally forgot about $I-K$. Thanks!
Jul
30
revised What is the correct way to solve $|2K^3-2K^4|$ determinant?
deleted 30 characters in body
Jul
30
comment What is the correct way to solve $|2K^3-2K^4|$ determinant?
Why couldn't we do the same trick without knowing how K is build? We know K is invertible ($det(K) \neq 0$) and we know that its size is $3\times 3$. Isn't it enough?
Jul
30
revised What is the correct way to solve $|2K^3-2K^4|$ determinant?
pointing out the mistake
Jul
30
accepted What is the correct way to solve $|2K^3-2K^4|$ determinant?
Jul
30
revised What is the correct way to solve $|2K^3-2K^4|$ determinant?
Added the matrix K
Jul
30
comment What is the correct way to solve $|2K^3-2K^4|$ determinant?
@GerryMyerson: In which specific cases it does equal?
Jul
30
asked What is the correct way to solve $|2K^3-2K^4|$ determinant?
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