tan Mul Pow tan cot x6 x0 acoth Add x0 sqrt x5 
Mul Pow sec Mul Pow tan cot x6 x0 acoth Add x0 sqrt x5 2 Add Mul acoth Add x0 sqrt x5 Mul Pow tan cot x6 Add x0 -1 Mul tan cot x6 log tan cot x6 Mul Pow tan cot x6 x0 Pow Add 1 Mul -1 Mul Add x0 sqrt x5 Add x0 sqrt x5 -1 