Matematika

Pertanyaan

f(x) = 2x+1, (fog)(x)= 2xkuadrat-2x+7, g(x)=

2 Jawaban

  • (fog)(x) = 2x² - 2x + 7
    2(g(x)) + 1 = 2x² - 2x + 7
    2(g(x)) = 2x² - 2x + 6
    g(x) = x² - x + 3
  • f (x) = 2x + 1

    fog (x) = 2x² - 2x + 7
    f (g (x)) = 2x² - 2x + 7
    2 g (x) + 1 = 2x² - 2x + 7
    2 g (x) = 2x² - 2x + 7 - 1
    2 g (x) = 2x² - 2x + 6
    g (x) = (2x² - 2x + 6) / 2
    g (x) = x² - x + 3

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