The first derivative
[src]
2*x
-----------
________
/ 4
\/ 1 + x
$$\frac{2 x}{\sqrt{x^{4} + 1}}$$
The second derivative
[src]
/ 4 \
| 2*x |
2*|1 - ------|
| 4|
\ 1 + x /
--------------
________
/ 4
\/ 1 + x
$$\frac{2 \left(- \frac{2 x^{4}}{x^{4} + 1} + 1\right)}{\sqrt{x^{4} + 1}}$$
The third derivative
[src]
/ 4 \
3 | 6*x |
4*x *|-5 + ------|
| 4|
\ 1 + x /
------------------
3/2
/ 4\
\1 + x /
$$\frac{4 x^{3} \left(\frac{6 x^{4}}{x^{4} + 1} - 5\right)}{\left(x^{4} + 1\right)^{\frac{3}{2}}}$$