7*(4*x*pi - 5)
- -------------- + 4*pi*acos(7*x)
___________
/ 2
\/ 1 - 49*x
$$4 \pi \operatorname{acos}{\left(7 x \right)} - \frac{7 \left(\pi 4 x - 5\right)}{\sqrt{1 - 49 x^{2}}}$$
/ 49*x*(-5 + 4*pi*x)\
-7*|8*pi + ------------------|
| 2 |
\ 1 - 49*x /
------------------------------
___________
/ 2
\/ 1 - 49*x
$$- \frac{7 \left(\frac{49 x \left(4 \pi x - 5\right)}{1 - 49 x^{2}} + 8 \pi\right)}{\sqrt{1 - 49 x^{2}}}$$
// 2 \ \
|| 147*x | |
343*||-1 + ----------|*(-5 + 4*pi*x) - 12*pi*x|
|| 2| |
\\ -1 + 49*x / /
-----------------------------------------------
3/2
/ 2\
\1 - 49*x /
$$\frac{343 \left(- 12 \pi x + \left(4 \pi x - 5\right) \left(\frac{147 x^{2}}{49 x^{2} - 1} - 1\right)\right)}{\left(1 - 49 x^{2}\right)^{\frac{3}{2}}}$$