1 ------- 4 -1 + x lim E x->1+
Limit(E^(1/(-1 + x^4)), x, 1)
oo
= 0.00528547994248644
1 ------- 4 -1 + x lim E x->1-
0
= -1.13122813245846e-18
0.00528547994248644