Matematika

Pertanyaan

diketahui f(x)= 2x+5 dan g(x)= x-1/x+4,x= -4 makan (fog) .(x)=

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  • Bab Fungsi
    Matematika SMA Kelas X

    (fog) (x) = f((x - 1)/(x + 4))
    (fog) (x) = 2 ((x - 1)/(x + 4)) + 5
    (fog) (x) = ((2x - 2) + 5 (x + 4))/(x + 4)
    (fog) (x) = (2x - 2 + 5x + 20)/(x + 4)
    (fog) (x) = (7x + 18)/(x + 4)

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