Respuestas

2012-06-14T16:14:14+02:00

(x-2)/(x-4)mayor o igual  a 0

 

x − 2 = 0      x = 2

x − 4 = 0      x = 4

 

-(0-2)/(0-4)mayor  a 0

 

-(3-2)/(3-4)menor  a 0

 

-(5-2)/(5-4)mayor a 0

 

 

 

 

 

S = (-∞, 2]  (4, ∞)