Решите систему уравнений \(\begin{cases}{20\, \cdot {x^{{{\log }_3}y}} + 7\, \cdot {y^{{{\log }_3}x}} = 81\sqrt[3]{3},} \\ {x\,y = 9\,\sqrt[3]{9}.\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \end{cases}\) \((9;\sqrt[3]{9})\) \((\sqrt[3]{9};9)\) \((-9;\sqrt[3]{9})\) \((9;-\sqrt[3]{9})\) \((-9;-\sqrt[3]{9})\) \((-\sqrt[3]{9};9)\) \((\sqrt[3]{9};-9)\)

Задание

Решите систему уравнений \(\begin{cases}{20\, \cdot {x^{{{\log }_3}y}} + 7\, \cdot {y^{{{\log }_3}x}} = 81\sqrt[3]{3},} \\ {x\,y = 9\,\sqrt[3]{9}.\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \end{cases}\)

\((9;\sqrt[3]{9})\)
\((\sqrt[3]{9};9)\)
\((-9;\sqrt[3]{9})\)
\((9;-\sqrt[3]{9})\)
\((-9;-\sqrt[3]{9})\)
\((-\sqrt[3]{9};9)\)
\((\sqrt[3]{9};-9)\)

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