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Invers fungsi f(x)=x−12x+3​,x=1 adalah ...

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Invers fungsi begin mathsize 14px style f left parenthesis x right parenthesis equals fraction numerator 2 x plus 3 over denominator x minus 1 end fraction comma x not equal to 1 end style adalah ...

  1. f to the power of negative 1 end exponent left parenthesis x right parenthesis equals fraction numerator x plus 3 over denominator x minus 2 end fraction comma x not equal to 2

  2. f to the power of negative 1 end exponent left parenthesis x right parenthesis equals fraction numerator x plus 3 over denominator x plus 2 end fraction comma x not equal to negative 2

  3. f to the power of negative 1 end exponent left parenthesis x right parenthesis equals fraction numerator x minus 3 over denominator x minus 2 end fraction comma x not equal to 2

  4. f to the power of negative 1 end exponent left parenthesis x right parenthesis equals fraction numerator 2 x plus 3 over denominator x plus 2 end fraction comma x not equal to negative 2

  5. f to the power of negative 1 end exponent left parenthesis x right parenthesis equals fraction numerator 2 x plus 3 over denominator x minus 1 end fraction comma x not equal to 1

F. Pratama

Master Teacher

Mahasiswa/Alumni Universitas Putra Indonesia YPTK Padang

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Pembahasan

begin mathsize 14px style f left parenthesis x right parenthesis equals fraction numerator 2 x plus 3 over denominator x minus 1 end fraction comma x not equal to negative 1  y equals fraction numerator 2 x plus 3 over denominator x minus 1 end fraction  y left parenthesis x minus 1 right parenthesis equals 2 x plus 3  x y minus y equals 2 x plus 3  x y minus 2 x equals y plus 3  x left parenthesis y minus 2 right parenthesis equals y plus 3  x equals fraction numerator y plus 3 over denominator y minus 2 end fraction  f to the power of negative 1 end exponent left parenthesis x right parenthesis equals fraction numerator x plus 3 over denominator x minus 2 end fraction comma x not equal to 2 end style

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