cos acos Pow Add sec x7 x5 acosh x0 
Mul Mul -1 sin acos Pow Add sec x7 x5 acosh x0 Mul -1 Mul Mul Pow Add sec x7 x5 Add acosh x0 -1 Mul Mul Add sec x7 x5 log Add sec x7 x5 Pow Mul sqrt Add x0 -1 sqrt Add 1 x0 -1 Pow sqrt Add 1 Mul -1 Mul Pow Add sec x7 x5 acosh x0 Pow Add sec x7 x5 acosh x0 -1 