Matematika

Pertanyaan

jika f(x)=2x+1 dan g(x)=1-3x temukan nilai a agar fog(a)=5

1 Jawaban

  • f(x) = 2x + 1
    g(x) = 1 - 3x

    fog(x)
    = 2(1 - 3x) + 1
    = 2 - 6x + 1
    = 3 - 6x

    fog(a) = 5
    3 - 6a = 5
    3 - 5 = 6a
    -2 = 6a
    a = -2/6
    a = -1/3

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