acot Pow x6 Mul cos x7 Add x0 sech Pow x3 x5 
Mul -1 Mul Mul Pow x6 Add Mul cos x7 Add x0 sech Pow x3 x5 -1 Mul Mul x6 log x6 cos x7 Pow Add 1 Mul Pow x6 Mul cos x7 Add x0 sech Pow x3 x5 Pow x6 Mul cos x7 Add x0 sech Pow x3 x5 -1 