/ 1 -x\ lim |1 + - - E | x->0+\ x /
Limit(1 + 1/x - E^(-x), x, 0)
oo
= 151.006600636022
/ 1 -x\ lim |1 + - - E | x->0-\ x /
-oo
= -151.006644493907
151.006600636022