/ 2 \
x*\6 + 6*tan (6*x)/ + tan(6*x) 4*x*tan(6*x)
------------------------------ - ----------------------
atan(4*x) / 2\ 2
\1 + 16*x /*atan (4*x)
$$- \frac{4 x \tan{\left(6 x \right)}}{\left(16 x^{2} + 1\right) \operatorname{atan}^{2}{\left(4 x \right)}} + \frac{x \left(6 \tan^{2}{\left(6 x \right)} + 6\right) + \tan{\left(6 x \right)}}{\operatorname{atan}{\left(4 x \right)}}$$
/ / 1 \ \
| / / 2 \ \ 8*x*|--------- + 4*x|*tan(6*x)|
| 2 2*\6*x*\1 + tan (6*x)/ + tan(6*x)/ / 2 \ \atan(4*x) / |
4*|3 + 3*tan (6*x) - ---------------------------------- + 18*x*\1 + tan (6*x)/*tan(6*x) + ------------------------------|
| / 2\ 2 |
| \1 + 16*x /*atan(4*x) / 2\ |
\ \1 + 16*x / *atan(4*x) /
-------------------------------------------------------------------------------------------------------------------------
atan(4*x)
$$\frac{4 \left(\frac{8 x \left(4 x + \frac{1}{\operatorname{atan}{\left(4 x \right)}}\right) \tan{\left(6 x \right)}}{\left(16 x^{2} + 1\right)^{2} \operatorname{atan}{\left(4 x \right)}} + 18 x \left(\tan^{2}{\left(6 x \right)} + 1\right) \tan{\left(6 x \right)} + 3 \tan^{2}{\left(6 x \right)} + 3 - \frac{2 \left(6 x \left(\tan^{2}{\left(6 x \right)} + 1\right) + \tan{\left(6 x \right)}\right)}{\left(16 x^{2} + 1\right) \operatorname{atan}{\left(4 x \right)}}\right)}{\operatorname{atan}{\left(4 x \right)}}$$
/ / 2 \ \
| | 3 64*x 24*x | |
| / 1 \ / / 2 \ \ 16*x*|-1 + ---------------------- + --------- + ---------------------|*tan(6*x)|
| / 2 / 2 \ \ 12*|--------- + 4*x|*\6*x*\1 + tan (6*x)/ + tan(6*x)/ | / 2\ 2 2 / 2\ | |
| / 2 \ / / 2 \ \ 18*\1 + tan (6*x) + 6*x*\1 + tan (6*x)/*tan(6*x)/ \atan(4*x) / \ \1 + 16*x /*atan (4*x) 1 + 16*x \1 + 16*x /*atan(4*x)/ |
8*|27*\1 + tan (6*x)/*\2*x*\1 + 3*tan (6*x)/ + tan(6*x)/ - ------------------------------------------------- + ----------------------------------------------------- - -------------------------------------------------------------------------------|
| / 2\ 2 2 |
| \1 + 16*x /*atan(4*x) / 2\ / 2\ |
\ \1 + 16*x / *atan(4*x) \1 + 16*x / *atan(4*x) /
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
atan(4*x)
$$\frac{8 \left(- \frac{16 x \left(\frac{64 x^{2}}{16 x^{2} + 1} + \frac{24 x}{\left(16 x^{2} + 1\right) \operatorname{atan}{\left(4 x \right)}} - 1 + \frac{3}{\left(16 x^{2} + 1\right) \operatorname{atan}^{2}{\left(4 x \right)}}\right) \tan{\left(6 x \right)}}{\left(16 x^{2} + 1\right)^{2} \operatorname{atan}{\left(4 x \right)}} + \frac{12 \left(4 x + \frac{1}{\operatorname{atan}{\left(4 x \right)}}\right) \left(6 x \left(\tan^{2}{\left(6 x \right)} + 1\right) + \tan{\left(6 x \right)}\right)}{\left(16 x^{2} + 1\right)^{2} \operatorname{atan}{\left(4 x \right)}} + 27 \left(2 x \left(3 \tan^{2}{\left(6 x \right)} + 1\right) + \tan{\left(6 x \right)}\right) \left(\tan^{2}{\left(6 x \right)} + 1\right) - \frac{18 \left(6 x \left(\tan^{2}{\left(6 x \right)} + 1\right) \tan{\left(6 x \right)} + \tan^{2}{\left(6 x \right)} + 1\right)}{\left(16 x^{2} + 1\right) \operatorname{atan}{\left(4 x \right)}}\right)}{\operatorname{atan}{\left(4 x \right)}}$$