Kk saya mohon di jawab bagi yg tau

Fungsi Invers

ada trik khusus :
jika f(x) = ax +b / cx + d
maka
f^-1(x) = -dx + b / cx - a

10.
g(x) = x + 1 / 2x - 3
maka
g^-1(x) = 3x + 1/ 2x - 1

(B)

11.
f(x+2) = (x+2) / (x+2)-1
= x+ 2/ x+1

f^-1(x) = -x +2 / x-1 = x-2 / 1- x

(E)

12.
f(x) = 3x - 1
y = 3x - 1
x = y+ 1/ 3
f^-1(x) = x + 1/ 3

g(x) = 2x^2 - 3
y = 2x^2 - 3
x = +/- √(y+3)/2
g^-1(x) = +/- √(x+3)/2
Maka
f^-1 (g^-1 (x))
= ( 1 +/- √(x+3)/2 )/ 3

(A)