Add Pow Add acos tanh Add sec x0 8 asin x0 Pow x3 Pow x5 x4 x4 
Mul Pow Add acos tanh Add sec x0 8 asin x0 Add Pow x3 Pow x5 x4 -1 Mul Pow x3 Pow x5 x4 Add Mul -1 Mul Mul Pow sech Add sec x0 8 2 Mul tan x0 sec x0 Pow sqrt Add 1 Mul -1 Mul tanh Add sec x0 8 tanh Add sec x0 8 -1 Pow sqrt Add 1 Mul -1 Mul x0 x0 -1 