csc Add -2 cos Mul Add Pow sec atan x4 x0 log x2 x7 
Mul Mul Mul -1 cot Add -2 cos Mul Add Pow sec atan x4 x0 log x2 x7 csc Add -2 cos Mul Add Pow sec atan x4 x0 log x2 x7 Mul Mul -1 sin Mul Add Pow sec atan x4 x0 log x2 x7 Mul x7 Mul Pow sec atan x4 Add x0 -1 Mul sec atan x4 log sec atan x4 