4*x
- -------------- + acos(4*x)
___________
/ 2
\/ 1 - 16*x $$- \frac{4 x}{\sqrt{- 16 x^{2} + 1}} + \operatorname{acos}{\left (4 x \right )}$$
/ 2 \
| 8*x |
-8*|1 + ---------|
| 2|
\ 1 - 16*x /
------------------
___________
/ 2
\/ 1 - 16*x $$- \frac{\frac{64 x^{2}}{- 16 x^{2} + 1} + 8}{\sqrt{- 16 x^{2} + 1}}$$
/ 2 \
| 12*x |
-256*x*|1 + ---------|
| 2|
\ 1 - 16*x /
----------------------
3/2
/ 2\
\1 - 16*x / $$- \frac{256 x \left(\frac{12 x^{2}}{- 16 x^{2} + 1} + 1\right)}{\left(- 16 x^{2} + 1\right)^{\frac{3}{2}}}$$