Pow asec Add x6 sec x0 tan x0 
Mul Pow asec Add x6 sec x0 Add tan x0 -1 Add Mul tan x0 Mul Mul tan x0 sec x0 Pow Mul Mul sqrt Add 1 Mul -1 Pow Mul Add x6 sec x0 Add x6 sec x0 -1 Add x6 sec x0 Add x6 sec x0 -1 Mul Mul asec Add x6 sec x0 log asec Add x6 sec x0 Pow sec x0 2 