/tan(-1 + x)\ lim |-----------| x->0+| 2 | \ x - x /
Limit(tan(-1 + x)/(x^2 - x), x, 0)
/tan(-1 + x)\ lim |-----------| x->0+| 2 | \ x - x /
oo
= 233.323154976622
/tan(-1 + x)\ lim |-----------| x->0-| 2 | \ x - x /
-oo
= -237.059902101088
= -237.059902101088