Matematika

Pertanyaan

g(x)=3x-2 dan (fog)(x)=9x^2-6x+4. nilai f(4)=
no 36.
g(x)=3x-2 dan (fog)(x)=9x^2-6x+4. nilai f(4)= no 36.

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1 Jawaban

  • Bab Fungsi
    Matematika SMA Kelas XI

    (fog) (x) = 9x² - 6x + 4
    f(3x - 2) = 9x² - 6x + 4
    f(3 . x/3 - 2) = 9 (x/3)² - 6 (x/3) + 4
    f(x + 2 - 2) = (x + 2)² - 2x + 4
    f(4) = (4 + 2)² - 2 (4) + 4
    f(4) = 32

    jawabannya C

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