-4*acos(2*x)
-------------
__________
/ 2
\/ 1 - 4*x
$$- \frac{4 \operatorname{acos}{\left (2 x \right )}}{\sqrt{- 4 x^{2} + 1}}$$
/ 1 2*x*acos(2*x)\
-8*|--------- + -------------|
| 2 3/2|
|-1 + 4*x / 2\ |
\ \1 - 4*x / /
$$- 8 \left(\frac{2 x \operatorname{acos}{\left (2 x \right )}}{\left(- 4 x^{2} + 1\right)^{\frac{3}{2}}} + \frac{1}{4 x^{2} - 1}\right)$$
/ 2 \
| acos(2*x) 6*x 12*x *acos(2*x)|
16*|- ------------- + ------------ - ---------------|
| 3/2 2 5/2 |
| / 2\ / 2\ / 2\ |
\ \1 - 4*x / \-1 + 4*x / \1 - 4*x / /
$$16 \left(- \frac{12 x^{2} \operatorname{acos}{\left (2 x \right )}}{\left(- 4 x^{2} + 1\right)^{\frac{5}{2}}} + \frac{6 x}{\left(4 x^{2} - 1\right)^{2}} - \frac{\operatorname{acos}{\left (2 x \right )}}{\left(- 4 x^{2} + 1\right)^{\frac{3}{2}}}\right)$$