Jawabanmu

2014-03-11T19:22:41+07:00
Lupac Kali game salah pale rum us sma
2014-03-11T23:55:17+07:00
F(x)=x-1/2x+2
y =x-1/2x+2
2xy+2y=x-1
2xy-x=-1-2y
x(2y-1)=-1-2y
x=-1-2y/2y-1

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