$$8 \sinh^{7}{\left (x \right )} \cosh{\left (x \right )}$$
6 / 2 2 \
8*sinh (x)*\sinh (x) + 7*cosh (x)/
$$8 \left(\sinh^{2}{\left (x \right )} + 7 \cosh^{2}{\left (x \right )}\right) \sinh^{6}{\left (x \right )}$$
5 / 2 2 \
16*sinh (x)*\11*sinh (x) + 21*cosh (x)/*cosh(x)
$$16 \left(11 \sinh^{2}{\left (x \right )} + 21 \cosh^{2}{\left (x \right )}\right) \sinh^{5}{\left (x \right )} \cosh{\left (x \right )}$$