The third derivative
[src]
1 3 3 3 1
1 + ------------- + -------------- + -------- + --------- + ---------------------
2 2*(1 + log(x)) 4*log(x) 2 2*(1 + log(x))*log(x)
(1 + log(x)) 8*log (x)
---------------------------------------------------------------------------------
3 ________
x *(1 + log(x))*\/ log(x)
$$\frac{1 + \frac{3}{4 \log{\left(x \right)}} + \frac{3}{8 \log{\left(x \right)}^{2}} + \frac{3}{2 \left(\log{\left(x \right)} + 1\right)} + \frac{1}{2 \left(\log{\left(x \right)} + 1\right) \log{\left(x \right)}} + \frac{1}{\left(\log{\left(x \right)} + 1\right)^{2}}}{x^{3} \left(\log{\left(x \right)} + 1\right) \sqrt{\log{\left(x \right)}}}$$