Diketahui dan Jika maka nilai a = ....

Pertanyaan

Diketahui dan Jika begin mathsize 14px style open parentheses PQ close parentheses to the power of negative 1 end exponent equals open parentheses table row cell negative 5 over 6 end cell cell 1 over 6 end cell row cell negative 1 end cell 0 end table close parentheses comma end style maka nilai a = ....

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A. Acfreelance

Master Teacher

Jawaban terverifikasi

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$begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell open parentheses PQ close parentheses to the power of negative 1 end exponent end cell equals cell fraction numerator 1 over denominator 0 open parentheses negative 5 close parentheses minus open parentheses negative 2 straight a close parentheses open parentheses 6 close parentheses end fraction open parentheses table row cell negative 5 end cell cell 2 straight a end cell row cell negative 6 end cell 0 end table close parentheses end cell row cell open parentheses table row cell negative fraction numerator 5 over denominator 12 straight a end fraction end cell cell 1 over 6 end cell row cell negative fraction numerator 1 over denominator 2 straight a end fraction end cell 0 end table close parentheses end cell equals cell fraction numerator 1 over denominator 12 straight a end fraction open parentheses table row cell negative 5 end cell cell 2 straight a end cell row cell negative 6 end cell 0 end table close parentheses end cell row cell open parentheses table row cell negative 5 over 6 end cell cell 1 over 6 end cell row cell negative 1 end cell 0 end table close parentheses end cell equals cell open parentheses table row cell negative fraction numerator 5 over denominator 12 straight a end fraction end cell cell 1 over 6 end cell row cell negative fraction numerator 1 over denominator 2 straight a end fraction end cell 0 end table close parentheses end cell end table end style$

Dari kesamaan matriks di atas, kita peroleh

$begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell negative 1 end cell equals cell negative fraction numerator 1 over denominator 2 straight a end fraction end cell row cell 2 straight a end cell equals 1 row straight a equals cell 1 half end cell end table end style$