sqrt exp acoth asinh Add sec x0 -1 
Mul Pow Mul 2 sqrt exp acoth asinh Add sec x0 -1 -1 Mul exp acoth asinh Add sec x0 -1 Mul Mul Mul tan x0 sec x0 Pow sqrt Add 1 Mul Add sec x0 -1 Add sec x0 -1 -1 Pow Add 1 Mul -1 Mul asinh Add sec x0 -1 asinh Add sec x0 -1 -1 