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Jika matriks dan maka hasil dari

Jika matriks begin mathsize 14px style A equals open parentheses table row 2 row 4 row 3 end table close parentheses end style dan begin mathsize 14px style B equals open parentheses table row 1 cell negative 2 end cell 4 end table close parentheses end style maka hasil dari begin mathsize 14px style A times B equals... end style 

  1. begin mathsize 14px style open parentheses table row 2 cell negative 4 end cell 8 row 4 cell negative 8 end cell 16 row 3 cell negative 6 end cell 12 end table close parentheses end style

  2. begin mathsize 14px style open parentheses table row cell negative 2 end cell cell negative 4 end cell 8 row 4 8 cell negative 16 end cell row 3 cell negative 6 end cell 12 end table close parentheses end style

  3. begin mathsize 14px style open parentheses table row 2 cell negative 4 end cell 8 row 4 cell negative 8 end cell 16 row cell negative 3 end cell cell negative 6 end cell 12 end table close parentheses end style

  4. begin mathsize 14px style open parentheses table row cell negative 2 end cell cell negative 4 end cell cell negative 6 end cell row 4 cell negative 8 end cell 16 row 3 cell negative 6 end cell 12 end table close parentheses end style

  5. begin mathsize 14px style open parentheses table row 2 cell negative 4 end cell 8 row 4 8 16 row 3 6 12 end table close parentheses end style

Jawaban:

Perhatikan bahwa matriks begin mathsize 14px style A equals open parentheses table row 2 row 4 row 3 end table close parentheses end style berordo begin mathsize 14px style 3 cross times 1 end style dan matriks begin mathsize 14px style B equals open parentheses table row 1 cell negative 2 end cell 4 end table close parentheses end style berordo size 14px 1 size 14px cross times size 14px 3. Karena banyak kolom matriks begin mathsize 14px style A equals end stylebanyak baris matriks begin mathsize 14px style B end style, maka

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell A times B end cell equals cell open parentheses table row 2 row 4 row 3 end table close parentheses open parentheses 1 number space minus 2 number space 4 close parentheses end cell row blank equals cell open parentheses table row cell 2 times 1 number space end cell cell 2 times open parentheses negative 2 close parentheses number space end cell cell 2 times 4 end cell row cell 4 times 1 number space end cell cell 4 times left parenthesis negative 2 right parenthesis number space end cell cell 4 times 4 end cell row cell 3 times 1 number space end cell cell 3 times left parenthesis negative 2 right parenthesis number space end cell cell 3 times 4 end cell end table close parentheses end cell row blank equals cell open parentheses table row 2 cell negative 4 end cell 8 row 4 cell negative 8 end cell 16 row 3 cell negative 6 end cell 12 end table close parentheses end cell end table end style

Jadi, jawaban yang tepat adalah A.

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