x /x\
--------------- + asin|-|
________ \2/
/ 2
/ x
2* / 1 - --
\/ 4
$$\frac{x}{2 \sqrt{- \frac{x^{2}}{4} + 1}} + \operatorname{asin}{\left (\frac{x}{2} \right )}$$
2
x
1 + ----------
/ 2\
| x |
8*|1 - --|
\ 4 /
--------------
________
/ 2
/ x
/ 1 - --
\/ 4
$$\frac{\frac{x^{2}}{- 2 x^{2} + 8} + 1}{\sqrt{- \frac{x^{2}}{4} + 1}}$$
/ 2 \
| 3*x |
x*|16 + ------|
| 2|
| x |
| 1 - --|
\ 4 /
---------------
3/2
/ 2\
| x |
32*|1 - --|
\ 4 /
$$\frac{x \left(\frac{3 x^{2}}{- \frac{x^{2}}{4} + 1} + 16\right)}{32 \left(- \frac{x^{2}}{4} + 1\right)^{\frac{3}{2}}}$$