lim (2*log(x)) x->-oo
Limit(2*log(x), x, -oo)
lim (2*log(x)) x->0+
-oo
= -17.7117000643868
lim (2*log(x)) x->0-
= (-17.7117000643868 + 6.28318530717959j)
oo
-17.7117000643868