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  1. fraction numerator 1 plus 12 x over denominator 5 x end fraction

  2. fraction numerator 1 minus 12 x over denominator 5 x end fraction

  3. fraction numerator 1 minus 2 x over denominator 5 x end fraction

  4. fraction numerator 1 plus 2 x over denominator 5 x end fraction

  5. fraction numerator 1 over denominator 12 plus 5 x end fraction

Pembahasan Soal:

begin mathsize 14px style Misalkan space straight a equals straight x minus 2 comma space maka space straight x equals straight a plus 2 space sehingga  straight f left parenthesis straight x minus 2 right parenthesis equals fraction numerator 1 over denominator 2 plus 5 straight x end fraction  straight f left parenthesis straight a right parenthesis equals fraction numerator 1 over denominator 2 plus 5 left parenthesis straight a plus 2 right parenthesis end fraction equals fraction numerator 1 over denominator 5 straight a plus 12 end fraction  straight f left parenthesis straight x right parenthesis equals fraction numerator 1 over denominator 5 straight x plus 12 end fraction    Misalkan space straight y equals straight f left parenthesis straight x right parenthesis  straight y equals fraction numerator 1 over denominator 5 straight x plus 12 end fraction  5 xy plus 12 straight y equals 1  straight x equals fraction numerator 1 minus 12 straight y over denominator 5 straight y end fraction  straight f to the power of negative 1 end exponent left parenthesis straight x right parenthesis equals fraction numerator 1 minus 12 straight x over denominator 5 straight x end fraction end style

Pembahasan terverifikasi oleh Roboguru

Terakhir diupdate 20 Desember 2020

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