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Cofactor matrix determinant [on hold]

Finding inverse using inverse formulaMatrix with determinant 0Proof of a property of a cofactor matrix.Each element of a real orthogonal matrix is equal to its cofactorWhat is the determinant of cofactor matrix of a matrix?How can find matrix using cofactor matrix and determinant?Cofactor Expansion 4x4 linear algebraWhat is the number of multiplications required to find determinant by cofactor expansion?determinant formulaNumber of steps in cofactor expansion vs row reduction.Cofactor matrix and trace

-4

$begingroup$

For cofactor matrix $A^c$, how can we show $A^*A^c = det(A)·I$?

linear-algebra

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edited yesterday

Saad

19.9k92352

asked yesterday

KevinKevin

123

$endgroup$

put on hold as off-topic by Eevee Trainer, Saad, GNUSupporter 8964民主女神 地下教會, John Omielan, Hans Lundmark yesterday

This question appears to be off-topic. The users who voted to close gave this specific reason:

• "This question is missing context or other details: Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and motivation, relevant definitions, source, possible strategies, your current progress, why the question is interesting or important, etc." – Eevee Trainer, Saad, GNUSupporter 8964民主女神 地下教會, John Omielan, Hans Lundmark

If this question can be reworded to fit the rules in the help center, please edit the question.

• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  Pls add more details to your post
  $endgroup$
  – rash
  yesterday
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  You may see my accepted answer for another question for details.
  $endgroup$
  – GNUSupporter 8964民主女神 地下教會
  yesterday
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  Note that the 𝑗-th row of the above matrix is replaced by the i-th row of 𝐴 as the Laplace expansion formula suggests. Could give more explanations?
  $endgroup$
  – Kevin
  yesterday
  

  
  
  
  

add a comment | 

-4

$begingroup$

For cofactor matrix $A^c$, how can we show $A^*A^c = det(A)·I$?

linear-algebra

share|cite|improve this question

edited yesterday

Saad

19.9k92352

asked yesterday

KevinKevin

123

$endgroup$

put on hold as off-topic by Eevee Trainer, Saad, GNUSupporter 8964民主女神 地下教會, John Omielan, Hans Lundmark yesterday

This question appears to be off-topic. The users who voted to close gave this specific reason:

• "This question is missing context or other details: Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and motivation, relevant definitions, source, possible strategies, your current progress, why the question is interesting or important, etc." – Eevee Trainer, Saad, GNUSupporter 8964民主女神 地下教會, John Omielan, Hans Lundmark

If this question can be reworded to fit the rules in the help center, please edit the question.

• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  Pls add more details to your post
  $endgroup$
  – rash
  yesterday
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  You may see my accepted answer for another question for details.
  $endgroup$
  – GNUSupporter 8964民主女神 地下教會
  yesterday
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  Note that the 𝑗-th row of the above matrix is replaced by the i-th row of 𝐴 as the Laplace expansion formula suggests. Could give more explanations?
  $endgroup$
  – Kevin
  yesterday
  

  
  
  
  

add a comment | 

$begingroup$

For cofactor matrix $A^c$, how can we show $A^*A^c = det(A)·I$?

linear-algebra

share|cite|improve this question

edited yesterday

Saad

19.9k92352

asked yesterday

KevinKevin

123

$endgroup$

share|cite|improve this question

edited yesterday

Saad

19.9k92352

asked yesterday

KevinKevin

123

share|cite|improve this question

edited yesterday

Saad

19.9k92352

asked yesterday

KevinKevin

123

edited yesterday

Saad

19.9k92352

edited yesterday

Saad

19.9k92352

asked yesterday

KevinKevin

123

asked yesterday

KevinKevin

123