sec acot Mul -0.0998215696688227 x0 
Mul Mul tan acot Mul -0.0998215696688227 x0 sec acot Mul -0.0998215696688227 x0 Mul -1 Mul -0.0998215696688227 Pow Add 1 Mul Mul -0.0998215696688227 x0 Mul -0.0998215696688227 x0 -1 