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Pertanyaan

Diketahui . Jika maka nilai a adalah ....

Diketahui begin mathsize 14px style straight f open parentheses straight x close parentheses equals negative straight x plus 2 comma straight D subscript straight f equals open curly brackets straight x vertical line straight x element of straight real numbers close curly brackets space dan space straight g open parentheses straight x close parentheses equals 2 straight x minus straight a comma straight D subscript straight g equals open curly brackets straight x vertical line straight x element of straight real numbers close curly brackets end style . Jika begin mathsize 14px style open parentheses straight f ring operator straight g close parentheses open parentheses 1 close parentheses equals open parentheses straight g ring operator straight f close parentheses open parentheses negative 1 close parentheses comma end style maka nilai a adalah ....

  1. 3

  2. 2

  3. 1

  4. -2  

  5. -3

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S. Nur

Master Teacher

Jawaban terverifikasi

Jawaban

jawabannya A.

jawabannya A.

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Pembahasan

Perhatikan bahwa Jadi, jawabannya A.

Perhatikan bahwa

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell open parentheses straight f ring operator straight g close parentheses open parentheses 1 close parentheses end cell equals cell open parentheses straight g ring operator straight f close parentheses open parentheses negative 1 close parentheses end cell row cell straight f open parentheses straight g open parentheses 1 close parentheses close parentheses end cell equals cell straight g open parentheses straight f open parentheses negative 1 close parentheses close parentheses end cell row cell straight f open parentheses 2 open parentheses 1 close parentheses minus straight a close parentheses end cell equals cell straight g open parentheses negative open parentheses negative 1 close parentheses plus 2 close parentheses end cell row cell straight f open parentheses 2 minus straight a close parentheses end cell equals cell straight g open parentheses 3 close parentheses end cell row cell negative open parentheses 2 minus straight a close parentheses plus 2 end cell equals cell 2 open parentheses 3 close parentheses minus straight a end cell row cell negative 2 plus straight a plus 2 end cell equals cell 6 minus straight a end cell row cell straight a plus straight a end cell equals 6 row cell 2 straight a end cell equals 6 row straight a equals cell 6 over 2 end cell row straight a equals 3 end table end style 

Jadi, jawabannya A.

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Diketahui . Jumlah semua nilai yang memenuhi adalah ....

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