6 2*atan(3*x)
----------------- - -----------
/ 2\ 2
\1 + 9*x /*log(x) x*log (x)
$$\frac{6}{\left(9 x^{2} + 1\right) \log{\left(x \right)}} - \frac{2 \operatorname{atan}{\left(3 x \right)}}{x \log{\left(x \right)}^{2}}$$
/ / 2 \ \
| |1 + ------|*atan(3*x)|
| 54*x 6 \ log(x)/ |
2*|- ----------- - ------------------- + ----------------------|
| 2 / 2\ 2 |
| / 2\ x*\1 + 9*x /*log(x) x *log(x) |
\ \1 + 9*x / /
----------------------------------------------------------------
log(x)
$$\frac{2 \left(- \frac{54 x}{\left(9 x^{2} + 1\right)^{2}} - \frac{6}{x \left(9 x^{2} + 1\right) \log{\left(x \right)}} + \frac{\left(1 + \frac{2}{\log{\left(x \right)}}\right) \operatorname{atan}{\left(3 x \right)}}{x^{2} \log{\left(x \right)}}\right)}{\log{\left(x \right)}}$$
/ / 2 \ \
| | 36*x | / 3 3 \ |
|54*|-1 + --------| 2*|1 + ------ + -------|*atan(3*x) / 2 \ |
| | 2| | log(x) 2 | 9*|1 + ------| |
| \ 1 + 9*x / 162 \ log (x)/ \ log(x)/ |
2*|------------------ + ------------------ - ---------------------------------- + --------------------|
| 2 2 3 2 / 2\ |
| / 2\ / 2\ x *log(x) x *\1 + 9*x /*log(x)|
\ \1 + 9*x / \1 + 9*x / *log(x) /
-------------------------------------------------------------------------------------------------------
log(x)
$$\frac{2 \left(\frac{54 \left(\frac{36 x^{2}}{9 x^{2} + 1} - 1\right)}{\left(9 x^{2} + 1\right)^{2}} + \frac{162}{\left(9 x^{2} + 1\right)^{2} \log{\left(x \right)}} + \frac{9 \left(1 + \frac{2}{\log{\left(x \right)}}\right)}{x^{2} \left(9 x^{2} + 1\right) \log{\left(x \right)}} - \frac{2 \left(1 + \frac{3}{\log{\left(x \right)}} + \frac{3}{\log{\left(x \right)}^{2}}\right) \operatorname{atan}{\left(3 x \right)}}{x^{3} \log{\left(x \right)}}\right)}{\log{\left(x \right)}}$$