/ /pi*x\\ lim log|cos|----|| x->2+ \ \ 2 //
Limit(log(cos((pi*x)/2)), x, 2)
/ /pi*x\\ lim log|cos|----|| x->2+ \ \ 2 //
pi*I
= (9.58229874165457e-30 + 3.14159265358979j)
/ /pi*x\\ lim log|cos|----|| x->2- \ \ 2 //
pi*I
= (9.58229874165457e-30 + 3.14159265358979j)
= (9.58229874165457e-30 + 3.14159265358979j)
(9.58229874165457e-30 + 3.14159265358979j)
(9.58229874165457e-30 + 3.14159265358979j)