Pow Add -2 Mul -2 x0 Mul sec exp x0 Add 1 x0 
Mul Pow Add -2 Mul -2 x0 Add Mul sec exp x0 Add 1 x0 -1 Add Mul Mul sec exp x0 Add 1 x0 -2 Mul Mul Add -2 Mul -2 x0 log Add -2 Mul -2 x0 Add Mul Add 1 x0 Mul Mul tan exp x0 sec exp x0 exp x0 sec exp x0 