Respuestas

2012-09-15T07:16:54+02:00

lim(x^4-(1/x))/(1+1/x^3)=((-1)^4-(1/-1))/(1+1/(-1)^3)=2/0=oo

x->-1

lim(x^4-16)/ (x^2-4)=0/0--->FI

x->2

lim(x^2+4)(x^2-4/ (x^2-4)=

x->2

lim(x^2+4)=2^2+4=8

x->2