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Jika dan , maka det AB adalah ….

Jika begin mathsize 14px style A equals open parentheses table row 2 cell negative sign 1 end cell cell negative sign 5 end cell row 0 2 4 end table close parentheses end style dan begin mathsize 14px style B equals open parentheses table row 0 3 row cell negative sign 1 end cell 5 row 2 cell negative sign 2 end cell end table close parentheses end style, maka det AB adalah ….

  1. -84

  2. -48

  3. 48

  4. 84

  5. 66

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M. Robo

Master Teacher

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begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row AB equals cell open parentheses table row 2 cell negative sign 1 end cell cell negative sign 5 end cell row 0 2 4 end table close parentheses open parentheses table row 0 3 row cell negative sign 1 end cell 5 row 2 cell negative sign 2 end cell end table close parentheses end cell row blank equals cell open parentheses table row cell open parentheses 2 close parentheses open parentheses 0 close parentheses plus open parentheses negative sign 1 close parentheses open parentheses negative sign 1 close parentheses plus open parentheses negative sign 5 close parentheses open parentheses 2 close parentheses end cell cell open parentheses 2 close parentheses open parentheses 3 close parentheses plus open parentheses negative sign 1 close parentheses open parentheses 5 close parentheses plus open parentheses negative sign 5 close parentheses open parentheses negative sign 2 close parentheses end cell row cell open parentheses 0 close parentheses open parentheses 0 close parentheses plus open parentheses 2 close parentheses open parentheses negative sign 1 close parentheses plus open parentheses 4 close parentheses open parentheses 2 close parentheses end cell cell open parentheses 0 close parentheses open parentheses 3 close parentheses plus open parentheses 2 close parentheses open parentheses 5 close parentheses plus open parentheses 4 close parentheses open parentheses negative sign 2 close parentheses end cell end table close parentheses end cell row blank equals cell open parentheses table row cell 0 plus 1 minus sign 10 end cell cell 6 minus sign 5 plus 10 end cell row cell 0 minus sign 2 plus 8 end cell cell 0 plus 10 minus sign 8 end cell end table close parentheses end cell row blank equals cell open parentheses table row cell negative sign 9 end cell 11 row 6 2 end table close parentheses end cell end table end style  


Sehingga begin mathsize 14px style det space AB double bond det invisible function application open parentheses table row cell negative sign 9 end cell 11 row 6 2 end table close parentheses end style 

begin mathsize 14px style det invisible function application AB equals open parentheses negative sign 9 close parentheses open parentheses 2 close parentheses minus sign open parentheses 11 close parentheses open parentheses 6 close parentheses equals minus sign 18 minus sign 66 equals minus sign 84 end style

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Diketahui P = ( − 4 a ​ − 2 b ​ 4 c ​ ) dan Q = ⎝ ⎛ ​ 3 3 − 3 ​ 3 − 6 0 ​ ⎠ ⎞ ​ . Jika det ( PQ) = 20 , maka 2 b - a = ....

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