tentukan tumus f-1(x) NB : di lihat soalnya

f(x) = (5x + 2) / (3x - 2)
Jika f(x) = (ax + b) / (cx + d)
Maka
f^-1(x) = (-dx + b) / (cx - a)
a = 5 ; b = 2 ; c = 3 ; d = -2

f^-1(x) = (2x + 2) / (3x - 5)