-2*t*x
--------------
___________
/ 2 4
\/ 1 - t *x
$$- \frac{2 t x}{\sqrt{- t^{2} x^{4} + 1}}$$
/ 2 4 \
| 2*t *x |
-2*t*|1 + ---------|
| 2 4|
\ 1 - t *x /
--------------------
___________
/ 2 4
\/ 1 - t *x
$$- \frac{2 t}{\sqrt{- t^{2} x^{4} + 1}} \left(\frac{2 t^{2} x^{4}}{- t^{2} x^{4} + 1} + 1\right)$$
/ 2 4 \
3 3 | 6*t *x |
-4*t *x *|5 + ---------|
| 2 4|
\ 1 - t *x /
------------------------
3/2
/ 2 4\
\1 - t *x /
$$- \frac{4 t^{3} x^{3}}{\left(- t^{2} x^{4} + 1\right)^{\frac{3}{2}}} \left(\frac{6 t^{2} x^{4}}{- t^{2} x^{4} + 1} + 5\right)$$