fungsi f:R->R dan g:R->R ditentukan oleh f(x) = 2x+5 dn g(x) = x+2. maka (FoG)^-1 adalah...

- Fungsi Invers -

(fog)(x) = 2(x+2) + 5
(fog)(x) = 2x+4+5
(fog)(x) = 2x+9
y = 2x+9
2x = y-9
x = (y-9)/2
(fog)-¹(x) = (x-9)/2

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-vin