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Pertanyaan

Jika f(x) = x + 3, dan (f o g)(x) = x 2 - 4, maka g(x - 2) = ....

Jika f(x) = x + 3, dan (f o g)(x) = x2 - 4, maka g(x - 2) = ....

  1. begin mathsize 14px style straight x squared minus 4 straight x plus 3 end style 

  2. begin mathsize 14px style straight x squared minus 4 straight x minus 3 end style 

  3. begin mathsize 14px style straight x squared minus 3 straight x plus 4 end style 

  4. begin mathsize 14px style straight x squared minus 3 straight x minus 4 end style 

  5. begin mathsize 14px style straight x squared minus 7 end style 

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N. Indah

Master Teacher

Mahasiswa/Alumni Universitas Diponegoro

Jawaban terverifikasi

Jawaban

jawaban yang tepat adalah B.

jawaban yang tepat adalah B.

Pembahasan

Jadi, jawaban yang tepat adalah B.

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell left parenthesis straight g to the power of negative 1 end exponent ring operator straight f to the power of negative 1 end exponent right parenthesis left parenthesis straight x right parenthesis end cell equals cell square root of straight x plus 4 end root end cell row cell straight g to the power of negative 1 end exponent left parenthesis straight x right parenthesis end cell equals cell left parenthesis straight g to the power of negative 1 end exponent ring operator straight f to the power of negative 1 end exponent ring operator straight f right parenthesis left parenthesis straight x right parenthesis end cell row blank equals cell left parenthesis straight g to the power of negative 1 end exponent ring operator straight f to the power of negative 1 end exponent right parenthesis left parenthesis straight x plus 3 right parenthesis end cell row blank equals cell square root of straight x plus 7 end root end cell row cell straight g left parenthesis straight x right parenthesis end cell equals cell straight x squared minus 7 end cell row cell straight g left parenthesis straight x minus 2 right parenthesis end cell equals cell left parenthesis straight x minus 2 right parenthesis squared minus 7 space end cell row cell straight g left parenthesis straight x minus 2 right parenthesis end cell equals cell straight x squared minus 4 straight x minus 3 end cell end table end style  

Jadi, jawaban yang tepat adalah B.

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