(e^(x^3/6))/(e^(x^2/2))
(e^(x^3 /6)) / (e^(x^2 /2))
\(\frac{e^{\frac{x^3}{6}}} {e^{\frac{x^2}{2}}}\\~\\ =\frac{e^{\frac{x^3}{6}}} {e^{\frac{3x^2}{6}}}\\~\\ =e^{\frac{x^3-3x^2}{6}} \\~\\ \)
