1 ---------- 1 - cos(x) /sin(x)\ lim |------| x->0+\ x /
Limit((sin(x)/x)^(1/(1 - cos(x))), x, 0)
1 ---------- 1 - cos(x) /sin(x)\ lim |------| x->0+\ x /
-1/3 e
= 0.716531310573789
1 ---------- 1 - cos(x) /sin(x)\ lim |------| x->0-\ x /
-1/3 e
= 0.716531310573789
= 0.716531310573789