1 --- 3*x / 1 \ lim |------| x->0+| 2| \1 + x /
Limit((1/(1 + x^2))^(1/(3*x)), x, 0)
1
= 1
1 --- 3*x / 1 \ lim |------| x->0-| 2| \1 + x /
1.0