lim sin(8*x) x->oo
Limit(sin(8*x), x, oo, dir='-')
lim sin(8*x) x->0+
0
= -2.23410794881825e-28
lim sin(8*x) x->0-
= 2.23410794881825e-28
<-1, 1>
-2.23410794881825e-28