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Mul cosh acos Pow 74.2099485247878 x0 Mul -1 Mul Mul Pow 74.2099485247878 Add x0 -1 78.5168467431271 Pow sqrt Add 1 Mul -1 Mul Pow 74.2099485247878 x0 Pow 74.2099485247878 x0 -1 