acos coth coth csch Add pi x0 
Mul -1 Mul Mul Mul -1 Pow csch coth csch Add pi x0 2 Mul Mul -1 Pow csch csch Add pi x0 2 Mul Mul -1 coth Add pi x0 csch Add pi x0 Pow sqrt Add 1 Mul -1 Mul coth coth csch Add pi x0 coth coth csch Add pi x0 -1 