/ tan(x) \ lim |-------------| pi \x*(-pi + 4*x)/ x->--+ 4
Limit(tan(x)/((x*(-pi + 4*x))), x, pi/4)
/ tan(x) \ lim |-------------| pi \x*(-pi + 4*x)/ x->--+ 4
oo
= 48.2984115302468
/ tan(x) \ lim |-------------| pi \x*(-pi + 4*x)/ x->--- 4
-oo
= -47.8357052007283
= -47.8357052007283