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anonymous
 one year ago
could anybody explain thee last step of this proof?
where they say Aj1* = Aj1
anonymous
 one year ago
could anybody explain thee last step of this proof? where they say Aj1* = Aj1

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amilapsn
 one year ago
Best ResponseYou've already chosen the best response.0what's the definition of cofactor?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Aij= (1)i+j det Aij)

phi
 one year ago
Best ResponseYou've already chosen the best response.3given a matrix, the cofactor of a specific row if found by "crossing off" that row (and the column, for each column) if we are crossing off the jth row of both matrix A and A*, and the only difference between the matrices is the jth row, it should be clear we get the same cofactor for both matrices (when expanding along the jth row)
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