Respuestas

2012-03-22T21:47:03+01:00

lim(x5)(x-5)/(x-5)=lim(x5)  ( (x-5)(x+5))/(x-5)(x+5) =

lim(x5)  ((x)^2-5^2)/(x-5)(x+5) =  lim(x5)  (x-5)/(x-5)(x+5)

= lim(x5)  1/((x+5) )=1/(25)