sqrt Pow cot x0 acos sec Pow asech cot x3 54.5981500331442 
Mul Pow Mul 2 sqrt Pow cot x0 acos sec Pow asech cot x3 54.5981500331442 -1 Mul Pow cot x0 Add acos sec Pow asech cot x3 54.5981500331442 -1 Mul acos sec Pow asech cot x3 54.5981500331442 Mul -1 Pow csc x0 2 