dik. f(x)=3x+2. dan g(x)=5x+7 tentukan *(gof) dan (fog)

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Bab Fungsi
Matematika SMA Kelas XI

1]
(gof) (x) = g(3x + 2)
(gof) (x) = 5 (3x + 2) + 7
(gof) (x) = 15x + 17

2]
(fog) (x) = f(5x + 7)
(fog) (x) = 3(5x + 7) + 2
(fog) (x) = 15x + 23