/-sin(x) + tan(x)\ lim |----------------| x->oo| 2 | \ 3*x /
Limit((-sin(x) + tan(x))/((3*x^2)), x, oo, dir='-')
/-sin(x) + tan(x)\ lim |----------------| x->0+| 2 | \ 3*x /
0
= 2.30511488199559e-31
/-sin(x) + tan(x)\ lim |----------------| x->0-| 2 | \ 3*x /
0
= -2.30511488199559e-31
= -2.30511488199559e-31