The first derivative
[src]
1 1
----- + -------------
1 + x ________
/ 2
2*\/ 1 - x
$$\frac{1}{x + 1} + \frac{1}{2 \sqrt{1 - x^{2}}}$$
The second derivative
[src]
1 x
- -------- + -------------
2 3/2
(1 + x) / 2\
2*\1 - x /
$$\frac{x}{2 \left(1 - x^{2}\right)^{\frac{3}{2}}} - \frac{1}{\left(x + 1\right)^{2}}$$
The third derivative
[src]
2
1 2 3*x
------------- + -------- + -------------
3/2 3 5/2
/ 2\ (1 + x) / 2\
2*\1 - x / 2*\1 - x /
$$\frac{3 x^{2}}{2 \left(1 - x^{2}\right)^{\frac{5}{2}}} + \frac{2}{\left(x + 1\right)^{3}} + \frac{1}{2 \left(1 - x^{2}\right)^{\frac{3}{2}}}$$