Mul Pow Add exp asech x1 x7 cot Pow x0 -1 -1 
Mul -1 Mul Pow Add exp asech x1 x7 Add cot Pow x0 -1 -1 Mul Mul Add exp asech x1 x7 log Add exp asech x1 x7 Mul Mul -1 Pow csc Pow x0 -1 2 Mul Pow x0 2 -1 