$1+\frac{\mathrm{\omega x}}{1!}+\frac{{\mathrm{\omega }}^2{\mathrm{x}}^2}{2!}+\frac{{\mathrm{\omega }}^3{\mathrm{x}}^3}{3!}\frac{{\mathrm{\omega }}^4{\mathrm{x}}^4}{4!}+\frac{{\mathrm{\omega }}^5{\mathrm{x}}^5}{5!}+\dots .\infty =$

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