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