Pow Mul sec x0 acos Pow acos x2 sech acsc x7 x0 
Mul Pow Mul sec x0 acos Pow acos x2 sech acsc x7 Add x0 -1 Add Mul x0 Mul acos Pow acos x2 sech acsc x7 Mul tan x0 sec x0 Mul Mul sec x0 acos Pow acos x2 sech acsc x7 log Mul sec x0 acos Pow acos x2 sech acsc x7 