/-sin(x) + tan(x)\ lim |----------------| x->oo\ x /
Limit((-sin(x) + tan(x))/x, x, oo, dir='-')
/-sin(x) + tan(x)\ lim |----------------| x->0+\ x /
0
= -1.09295066945284e-30
/-sin(x) + tan(x)\ lim |----------------| x->0-\ x /
0
= -1.09295066945284e-30
= -1.09295066945284e-30