Пусть (х;у) — решение системы
[tex] \frac{5 {x}^{2} - 11xy + 2 {y}^{2} }{5 {x}^{2} + 4xy - {y}^{2} } = \frac{7}{10} [/tex]
[tex]5x - 13y = 32[/tex]
Найдите произведение ху​
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