cot(x) -------- sin(4*x) lim (cos(x)) x->4*pi+
Limit(cos(x)^(cot(x)/sin(4*x)), x, 4*pi)
cot(x) -------- sin(4*x) lim (cos(x)) x->4*pi+
-1/8 e
= 0.882496902584595
cot(x) -------- sin(4*x) lim (cos(x)) x->4*pi-
-1/8 e
= 0.882496902584595
= 0.882496902584595