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Invers fungsi dari f ( x ) = 2 x − 1 3 x + 2 ​ , x  ≡ 2 1 ​ adalah...

Invers fungsi dari  adalah...

  1. f to the power of negative 1 end exponent open parentheses x close parentheses equals fraction numerator x plus 2 over denominator 2 x minus 3 end fraction semicolon x not identical to 3 over 2

  2. f to the power of negative 1 end exponent open parentheses x close parentheses equals fraction numerator x plus 2 over denominator 3 x plus 1 end fraction semicolon x not identical to negative 1 third

  3. f to the power of negative 1 end exponent open parentheses x close parentheses equals fraction numerator 2 x plus 1 over denominator x minus 3 end fraction semicolon x not identical to negative 3

  4. f to the power of negative 1 end exponent open parentheses x close parentheses equals fraction numerator x plus 2 over denominator 2 x plus 3 end fraction semicolon x not identical to negative 3 over 2

  5. f to the power of negative 1 end exponent open parentheses x close parentheses equals fraction numerator 2 x minus 3 over denominator x plus 5 end fraction semicolon x not identical to negative 5

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S. Intan

Master Teacher

Mahasiswa/Alumni Institut Pertanian Bogor

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Pembahasan

M i s a l space f left parenthesis x right parenthesis equals y space m a k a  y equals fraction numerator 3 x plus 2 over denominator 2 x minus 1 end fraction  2 x y minus y equals 3 x plus 2  2 x y minus 3 x equals y plus 2  x open parentheses 2 y minus 3 close parentheses equals y plus 2  x equals fraction numerator y plus 2 over denominator 2 y minus 3 end fraction  s e h i n g g a space i n v e r s space f to the power of negative 1 end exponent left parenthesis x right parenthesis comma  f to the power of negative 1 end exponent left parenthesis x right parenthesis space equals space fraction numerator x plus 2 over denominator 2 x minus 3 end fraction comma x not identical to 3 over 2

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Nahdha Hairani

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