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