anonymous
  • anonymous
could anybody explain thee last step of this proof? where they say Aj1* = Aj1
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
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amilapsn
  • amilapsn
what's the definition of cofactor?
anonymous
  • anonymous
Aij= (-1)i+j det Aij)

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phi
  • phi
given a matrix, the co-factor 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 co-factor for both matrices (when expanding along the jth row)
anonymous
  • anonymous
thanks!

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