tolong di bantu,besok di kumpul

Bab Fungsi
Matematika SMA Kelas XI

27] (fog) (x) = f(2x - 1)
(fog) (x) = 1/(2x - 1)
(fog)^-1 (x) = (x + 1)/2x

jawabannya C

28] (fog) (x) = (x - 3)/2x
1/g(x) = (x - 3)/2x
g(x) = 2x/(x - 3)
g^-1 (x) = 3x/(x - 2)

jawabannya B