cosh(x)*cosh(sinh(x))*cosh(sinh(sinh(x)))
$$\cosh{\left (x \right )} \cosh{\left (\sinh{\left (x \right )} \right )} \cosh{\left (\sinh{\left (\sinh{\left (x \right )} \right )} \right )}$$
2 2 2
cosh (x)*cosh (sinh(x))*sinh(sinh(sinh(x))) + cosh (x)*cosh(sinh(sinh(x)))*sinh(sinh(x)) + cosh(sinh(x))*cosh(sinh(sinh(x)))*sinh(x)
$$\sinh{\left (x \right )} \cosh{\left (\sinh{\left (x \right )} \right )} \cosh{\left (\sinh{\left (\sinh{\left (x \right )} \right )} \right )} + \sinh{\left (\sinh{\left (x \right )} \right )} \cosh^{2}{\left (x \right )} \cosh{\left (\sinh{\left (\sinh{\left (x \right )} \right )} \right )} + \sinh{\left (\sinh{\left (\sinh{\left (x \right )} \right )} \right )} \cosh^{2}{\left (x \right )} \cosh^{2}{\left (\sinh{\left (x \right )} \right )}$$
/ 2 3 2 2 2 \
\cosh(sinh(x))*cosh(sinh(sinh(x))) + cosh (x)*cosh (sinh(x))*cosh(sinh(sinh(x))) + cosh (x)*cosh(sinh(x))*cosh(sinh(sinh(x))) + 3*cosh (sinh(x))*sinh(x)*sinh(sinh(sinh(x))) + 3*cosh(sinh(sinh(x)))*sinh(x)*sinh(sinh(x)) + 3*cosh (x)*cosh(sinh(x))*sinh(sinh(x))*sinh(sinh(sinh(x)))/*cosh(x)
$$\left(3 \sinh{\left (x \right )} \sinh{\left (\sinh{\left (x \right )} \right )} \cosh{\left (\sinh{\left (\sinh{\left (x \right )} \right )} \right )} + 3 \sinh{\left (x \right )} \sinh{\left (\sinh{\left (\sinh{\left (x \right )} \right )} \right )} \cosh^{2}{\left (\sinh{\left (x \right )} \right )} + 3 \sinh{\left (\sinh{\left (x \right )} \right )} \sinh{\left (\sinh{\left (\sinh{\left (x \right )} \right )} \right )} \cosh^{2}{\left (x \right )} \cosh{\left (\sinh{\left (x \right )} \right )} + \cosh^{2}{\left (x \right )} \cosh^{3}{\left (\sinh{\left (x \right )} \right )} \cosh{\left (\sinh{\left (\sinh{\left (x \right )} \right )} \right )} + \cosh^{2}{\left (x \right )} \cosh{\left (\sinh{\left (x \right )} \right )} \cosh{\left (\sinh{\left (\sinh{\left (x \right )} \right )} \right )} + \cosh{\left (\sinh{\left (x \right )} \right )} \cosh{\left (\sinh{\left (\sinh{\left (x \right )} \right )} \right )}\right) \cosh{\left (x \right )}$$