2
atan (5*x) 10*atan(5*x)*log(x + 3)
---------- + -----------------------
x + 3 2
1 + 25*x
$$\frac{10 \log{\left(x + 3 \right)} \operatorname{atan}{\left(5 x \right)}}{25 x^{2} + 1} + \frac{\operatorname{atan}^{2}{\left(5 x \right)}}{x + 3}$$
2
atan (5*x) 50*(-1 + 10*x*atan(5*x))*log(3 + x) 20*atan(5*x)
- ---------- - ----------------------------------- + -------------------
2 2 / 2\
(3 + x) / 2\ \1 + 25*x /*(3 + x)
\1 + 25*x /
$$- \frac{50 \left(10 x \operatorname{atan}{\left(5 x \right)} - 1\right) \log{\left(x + 3 \right)}}{\left(25 x^{2} + 1\right)^{2}} + \frac{20 \operatorname{atan}{\left(5 x \right)}}{\left(x + 3\right) \left(25 x^{2} + 1\right)} - \frac{\operatorname{atan}^{2}{\left(5 x \right)}}{\left(x + 3\right)^{2}}$$
/ / 2 \ \
| | 15*x 100*x *atan(5*x) | |
| 250*|--------- - ---------------- + atan(5*x)|*log(3 + x) |
| 2 | 2 2 | |
|atan (5*x) \1 + 25*x 1 + 25*x / 75*(-1 + 10*x*atan(5*x)) 15*atan(5*x) |
2*|---------- - --------------------------------------------------------- - ------------------------ - --------------------|
| 3 2 2 / 2\ 2|
| (3 + x) / 2\ / 2\ \1 + 25*x /*(3 + x) |
\ \1 + 25*x / \1 + 25*x / *(3 + x) /
$$2 \left(- \frac{250 \left(- \frac{100 x^{2} \operatorname{atan}{\left(5 x \right)}}{25 x^{2} + 1} + \frac{15 x}{25 x^{2} + 1} + \operatorname{atan}{\left(5 x \right)}\right) \log{\left(x + 3 \right)}}{\left(25 x^{2} + 1\right)^{2}} - \frac{75 \left(10 x \operatorname{atan}{\left(5 x \right)} - 1\right)}{\left(x + 3\right) \left(25 x^{2} + 1\right)^{2}} - \frac{15 \operatorname{atan}{\left(5 x \right)}}{\left(x + 3\right)^{2} \left(25 x^{2} + 1\right)} + \frac{\operatorname{atan}^{2}{\left(5 x \right)}}{\left(x + 3\right)^{3}}\right)$$