2 atan(x) ___ ------- + log(x)*\/ x + 3 ___ \/ 3
atan(x)/sqrt(3) + log(x)*(sqrt(x))^2 + 3
/ ___\ |\/ 3 | |-----| x \ 3 / - + ------- + log(x) x 2 1 + x
___ 1 2*x*\/ 3 - - ----------- x 2 / 2\ 3*\1 + x /
___ ___ 2 1 2*\/ 3 8*\/ 3 *x - -- - ----------- + ----------- 2 2 3 x / 2\ / 2\ 3*\1 + x / 3*\1 + x /