Mul -4 tanh Pow Add Mul sec x5 x0 Mul Add cot x0 1 x1 sech x7 
Mul -4 Mul Pow sech Pow Add Mul sec x5 x0 Mul Add cot x0 1 x1 sech x7 2 Mul Pow Add Mul sec x5 x0 Mul Add cot x0 1 x1 Add sech x7 -1 Mul sech x7 Add sec x5 Mul x1 Mul -1 Pow csc x0 2 