Mul x0 acosh Pow sec x0 -1.03731472072755 
Add acosh Pow sec x0 -1.03731472072755 Mul x0 Mul Mul Pow sec x0 -2.03731472072755 Mul -1.03731472072755 Mul tan x0 sec x0 Pow Mul sqrt Add Pow sec x0 -1.03731472072755 -1 sqrt Add 1 Pow sec x0 -1.03731472072755 -1 