x x /x\
----------- - --------------- + acos|-|
________ ________ \2/
/ 2 / 2
\/ 4 - x / x
2* / 1 - --
\/ 4
$$\operatorname{acos}{\left(\frac{x}{2} \right)} + \frac{x}{\sqrt{- x^{2} + 4}} - \frac{x}{2 \sqrt{- \frac{x^{2}}{4} + 1}}$$
2 2
1 1 x x
----------- - ------------- + ----------- - -------------
________ ________ 3/2 3/2
/ 2 / 2 / 2\ / 2\
\/ 4 - x / x \4 - x / | x |
/ 1 - -- 8*|1 - --|
\/ 4 \ 4 /
$$\frac{x^{2}}{\left(- x^{2} + 4\right)^{\frac{3}{2}}} - \frac{x^{2}}{8 \left(- \frac{x^{2}}{4} + 1\right)^{\frac{3}{2}}} + \frac{1}{\sqrt{- x^{2} + 4}} - \frac{1}{\sqrt{- \frac{x^{2}}{4} + 1}}$$
/ 2 2 \
| 3 1 3*x 3*x |
x*|----------- - ------------- + ----------- - --------------|
| 3/2 3/2 5/2 5/2|
|/ 2\ / 2\ / 2\ / 2\ |
|\4 - x / | x | \4 - x / | x | |
| 2*|1 - --| 32*|1 - --| |
\ \ 4 / \ 4 / /
$$x \left(\frac{3 x^{2}}{\left(- x^{2} + 4\right)^{\frac{5}{2}}} - \frac{3 x^{2}}{32 \left(- \frac{x^{2}}{4} + 1\right)^{\frac{5}{2}}} + \frac{3}{\left(- x^{2} + 4\right)^{\frac{3}{2}}} - \frac{1}{2 \left(- \frac{x^{2}}{4} + 1\right)^{\frac{3}{2}}}\right)$$