sech exp Add coth x4 Mul x6 Add cot tan x4 x0 
Mul Mul tanh exp Add coth x4 Mul x6 Add cot tan x4 x0 Mul -1 sech exp Add coth x4 Mul x6 Add cot tan x4 x0 Mul exp Add coth x4 Mul x6 Add cot tan x4 x0 x6 