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Pertanyaan

Jika diketahui fungsi f ( x ) = 3 x + 5 2 x − 1 ​ d an g ( x ) = 47 x − 7 , maka ni l ai d a r i ( f ∘ g ) ( 2 ) = ...

Jika diketahui fungsi = ...

  1. 1 over 16

  2. 1 over 8

  3. 1 fourth

  4. 1 third

  5. 1 half

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A. Acfreelance

Master Teacher

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Pembahasan

Penyelesaian:

Penyelesaian:

left parenthesis f ring operator g right parenthesis left parenthesis x right parenthesis equals f left parenthesis g left parenthesis x right parenthesis right parenthesis  equals f left parenthesis 4 x minus 7 right parenthesis  equals fraction numerator 2 left parenthesis 4 x minus 7 right parenthesis plus 1 over denominator 3 left parenthesis 3 x minus 7 right parenthesis plus 5 end fraction  equals fraction numerator 8 x minus 14 minus 1 over denominator 12 x minus 21 plus 5 end fraction equals fraction numerator 8 x minus 15 over denominator 12 x minus 16 end fraction  left parenthesis f ring operator g right parenthesis left parenthesis 2 right parenthesis equals fraction numerator 8 left parenthesis 2 right parenthesis minus 15 over denominator 12 left parenthesis 2 right parenthesis minus 16 end fraction  equals fraction numerator 16 minus 15 over denominator 24 minus 16 end fraction equals 1 over 8

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Diketahui f ( x ) = x + 1 1 ​ dan g ( x ) = x − 1 1 ​ . Fungsi ( f ∘ g ) ( x ) = ....

2

4.4

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