Pow Add -1 E Pow Pow x0 Mul sec x2 x6 Add sec acot x2 x7 
Mul Pow Add -1 E Add Pow Pow x0 Mul sec x2 x6 Add sec acot x2 x7 -1 Mul Mul Add -1 E log Add -1 E Mul Pow Pow x0 Mul sec x2 x6 Add Add sec acot x2 x7 -1 Mul Add sec acot x2 x7 Mul Pow x0 Add Mul sec x2 x6 -1 Mul sec x2 x6 