Matematika

Pertanyaan

jika f(xy)=f(x+y) dan f(7)=7.tentukan nilai f(49)

1 Jawaban

  • f(49) = f(7.7) = f(7+7) = f(14)
    f(14) = f(2.7) = f(2+7) = f(9)
    f(9) = f(8 + 1) = f(8.1) = f(8)
    f(8) = f(7 + 1) = f(7.1) = f(7)

    f(7) = f(8) = f(9) = f(14) = f(49) = 7

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