2
2 49 2401*x 4*x*atan(x)
--------- + -------------- + -------------- - -----------
2 ___________ 3/2 2
/ 2\ / 2 / 2\ / 2\
\1 + x / \/ 1 - 49*x \1 - 49*x / \1 + x /
$$\frac{2401 x^{2}}{\left(1 - 49 x^{2}\right)^{\frac{3}{2}}} - \frac{4 x \operatorname{atan}{\left(x \right)}}{\left(x^{2} + 1\right)^{2}} + \frac{2}{\left(x^{2} + 1\right)^{2}} + \frac{49}{\sqrt{1 - 49 x^{2}}}$$
3 2
12*x 4*atan(x) 7203*x 352947*x 16*x *atan(x)
- --------- - --------- + -------------- + -------------- + -------------
3 2 3/2 5/2 3
/ 2\ / 2\ / 2\ / 2\ / 2\
\1 + x / \1 + x / \1 - 49*x / \1 - 49*x / \1 + x /
$$\frac{352947 x^{3}}{\left(1 - 49 x^{2}\right)^{\frac{5}{2}}} + \frac{16 x^{2} \operatorname{atan}{\left(x \right)}}{\left(x^{2} + 1\right)^{3}} - \frac{12 x}{\left(x^{2} + 1\right)^{3}} + \frac{7203 x}{\left(1 - 49 x^{2}\right)^{\frac{3}{2}}} - \frac{4 \operatorname{atan}{\left(x \right)}}{\left(x^{2} + 1\right)^{2}}$$