The third derivative
[src]
/ 4 4 \
2*|- -------------------------- + -------------------------|
| 2 / 1 \ 2|
| / 1 \ 4 |1 + ---------|*(-2 + x) |
| |1 + ---------| *(-2 + x) | 2| |
| | 2| \ (-2 + x) / |
\ \ (-2 + x) / /
------------------------------------------------------------
/ 1 \ 3
|1 + ---------|*(-2 + x)
| 2|
\ (-2 + x) /
$$\frac{2 \left(\frac{4}{\left(1 + \frac{1}{\left(x - 2\right)^{2}}\right) \left(x - 2\right)^{2}} - \frac{4}{\left(1 + \frac{1}{\left(x - 2\right)^{2}}\right)^{2} \left(x - 2\right)^{4}}\right)}{\left(1 + \frac{1}{\left(x - 2\right)^{2}}\right) \left(x - 2\right)^{3}}$$