___ \/ 3 / | | /x\ | x*acot|-| dx | \3/ | / 0
Integral(x*acot(x/3), (x, 0, sqrt(3)))
/ /x\ 2 /x\ | 9*acot|-| x *acot|-| | /x\ 3*x \3/ \3/ | x*acot|-| dx = C + --- + --------- + ---------- | \3/ 2 2 2 | /
___ pi 3*\/ 3 - -- + ------- 4 2
=
___ pi 3*\/ 3 - -- + ------- 4 2
-pi/4 + 3*sqrt(3)/2
Use the examples entering the upper and lower limits of integration.