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