Respuestas

2012-08-06T02:52:53+02:00

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

*2x+1=2(x+1)-1 

a=2(x+1)-1

(a+1)/2=x+1

 

*2x+1=2(x-1)+3
a=2(x-1)+3 

(a-3)/2=x-1


** f(a)=((a-3)/2)/((a+1)/2)

f(a)=(a-3)/(a+1)

 

** f(2x-1) = (2x-1-3)/(2x-1+1)

f(2x-1)=(x-2)/x <- rpta.

:)