Matematika

Pertanyaan


[tex]jika \: f(x) = ^{3} log(x ^{2} ) maka \: f(x) + f( \frac{3}{x} ) = [/tex]
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1 Jawaban

  • f(x) =  ³log (x²) = 2.(³log x)

    f (3/x) = ³log (3/x)² =  2. (³log 3 - ³log x)
    f (3/x) = 2 (1 - ³ log x)
    f (3/x) = 2 - 2 ³log x
     
    f (x) + f (3/x) = 2 (³log x ) + 2 - 2 (³log x)

    f (x) + f ( 3/x) = 2

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