Add acos asin Add sec x0 x0 x0 
Add Mul -1 Mul Mul Add Mul tan x0 sec x0 1 Pow sqrt Add 1 Mul -1 Mul Add sec x0 x0 Add sec x0 x0 -1 Pow sqrt Add 1 Mul -1 Mul asin Add sec x0 x0 asin Add sec x0 x0 -1 1 