4*(z*cosh(z) + sinh(z)) 6*z*sinh(z)
2*cosh(z) + z*sinh(z) - ----------------------- + -----------
-1 + z 2
(-1 + z)
-------------------------------------------------------------
2
(-1 + z)
$$\frac{z \sinh{\left(z \right)} + \frac{6 z \sinh{\left(z \right)}}{\left(z - 1\right)^{2}} + 2 \cosh{\left(z \right)} - \frac{4 \left(z \cosh{\left(z \right)} + \sinh{\left(z \right)}\right)}{z - 1}}{\left(z - 1\right)^{2}}$$
6*(2*cosh(z) + z*sinh(z)) 18*(z*cosh(z) + sinh(z)) 24*z*sinh(z)
3*sinh(z) + z*cosh(z) - ------------------------- + ------------------------ - ------------
-1 + z 2 3
(-1 + z) (-1 + z)
-------------------------------------------------------------------------------------------
2
(-1 + z)
$$\frac{z \cosh{\left(z \right)} - \frac{24 z \sinh{\left(z \right)}}{\left(z - 1\right)^{3}} + 3 \sinh{\left(z \right)} - \frac{6 \left(z \sinh{\left(z \right)} + 2 \cosh{\left(z \right)}\right)}{z - 1} + \frac{18 \left(z \cosh{\left(z \right)} + \sinh{\left(z \right)}\right)}{\left(z - 1\right)^{2}}}{\left(z - 1\right)^{2}}$$