November 2021 0 14 Report
решите систему уравнений методом алгебраического сложения 2x^2 - y^2 = 41, 2x^2 + y^2 = 59. x^2 - 3y^2 = 22, x^2 + 3y^2 = 28. x^2 - 2y^2 = 14, x^2 + 2y2 = 18.
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