Uprav výraz \( \left(\frac{x y}{6 y^{2}}\right)^{-1} \cdot \frac{2 y^{3} x}{x^{2}}: \frac{3 x^{2} y}{y^{2}} \).
\( =\frac{4 y^{5}}{x^{4}} \)
\( =\frac{4 y^{5}}{x^{3}} \)
\( =\frac{2 y^{5}}{x^{4}} \)
\( =\frac{4 y^{4}}{x^{5}} \)
