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Jika , maka determinan dari matriks A adalah ....

Jika A equals open parentheses table row 2 3 cell negative 3 end cell row 3 cell negative 5 end cell 2 row cell negative 1 end cell 4 2 end table close parentheses, maka determinan dari matriks A adalah ....

  1. 81

  2. 36

  3. 0

  4. -36

  5. -81

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M. Nizar

Master Teacher

Mahasiswa/Alumni Universitas Siliwangi

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Pembahasan

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell open vertical bar A close vertical bar end cell equals cell open vertical bar table row 2 3 cell negative 3 end cell row 3 cell negative 5 end cell 2 row cell negative 1 end cell 4 2 end table close vertical bar table row 2 3 row 3 cell negative 5 end cell row cell negative 1 end cell 4 end table end cell row cell open vertical bar A close vertical bar end cell equals cell open square brackets left parenthesis 2 right parenthesis open parentheses negative 5 close parentheses left parenthesis 2 right parenthesis plus left parenthesis 3 right parenthesis left parenthesis 2 right parenthesis open parentheses negative 1 close parentheses plus open parentheses negative 3 close parentheses left parenthesis 3 right parenthesis left parenthesis 4 right parenthesis close square brackets minus end cell row blank blank cell open square brackets open parentheses negative 3 close parentheses open parentheses negative 5 close parentheses open parentheses negative 1 close parentheses plus left parenthesis 2 right parenthesis left parenthesis 2 right parenthesis left parenthesis 4 right parenthesis plus left parenthesis 3 right parenthesis left parenthesis 3 right parenthesis left parenthesis 2 right parenthesis close square brackets end cell row cell open vertical bar A close vertical bar end cell equals cell open square brackets negative 20 minus 6 minus 36 close square brackets minus open square brackets negative 15 plus 16 plus 18 close square brackets end cell row cell open vertical bar A close vertical bar end cell equals cell negative 62 minus 19 end cell row cell open vertical bar A close vertical bar end cell equals cell negative 81 end cell end table end style

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Jika maka det A = ....

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