Matematika

Pertanyaan

Diketahui f(x) = 3x+4 dan g(x) = x^+1
Tentukan:
A. (Fog)(x)
B. (Gof)(x)

2 Jawaban

  • a.
    (fog)(x)
    = 3(x²+1) +4
    = 3x² +7

    b.
    (gof)(x)
    = (3x+4)² +1
    = 9x² + 24x +17
  • Bab Fungsi
    Matematika SMA Kelas XI

    a] (fog) (x) = 3 (x² + 1) + 4
    (fog) (x) = 3x² + 3 + 4
    (fog) (x) = 3x² + 7

    b] (gof) (x) = (3x + 4)² + 1
    (gof) (x) = 9x² + 24x + 16 + 1
    (gof) (x) = 9x² + 24x + 17

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