2
-10*sech (5*x)*tanh(5*x)
$$- 10 \tanh{\left(5 x \right)} \operatorname{sech}^{2}{\left(5 x \right)}$$
2 / 2 \
50*sech (5*x)*\-1 + 3*tanh (5*x)/
$$50 \left(3 \tanh^{2}{\left(5 x \right)} - 1\right) \operatorname{sech}^{2}{\left(5 x \right)}$$
2 / 2 \
-1000*sech (5*x)*\-2 + 3*tanh (5*x)/*tanh(5*x)
$$- 1000 \left(3 \tanh^{2}{\left(5 x \right)} - 2\right) \tanh{\left(5 x \right)} \operatorname{sech}^{2}{\left(5 x \right)}$$