/ / 2*x\\ |x*\-1 + E /| lim |-------------| x->0+| 2 | \ tan (3*x) /
Limit((x*(-1 + E^(2*x)))/tan(3*x)^2, x, 0)
/ / 2*x\\ |x*\-1 + E /| lim |-------------| x->0+| 2 | \ tan (3*x) /
2/9
= 0.222222222222222
/ / 2*x\\ |x*\-1 + E /| lim |-------------| x->0-| 2 | \ tan (3*x) /
2/9
= 0.222222222222222
= 0.222222222222222