/ 3*x \ lim |------| x->-1+| 2| \1 - x /
Limit((3*x)/(1 - x^2), x, -1)
False
= -oo
-oo
= -225.747508305648
/ 3*x \ lim |------| x->-1-| 2| \1 - x /
oo
= 227.247524752475
-225.747508305648