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