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Автор - Bitard6711

Решите систему уравнений методом алгебраического сложения: (11.10)

Ответ

Автор - poverinaalenaa
a)x^2+y^2=61       2x^2=72          x^2=36              x^2=36         x=+-6
x^2-y^2-11         x^2-y^2=11      x^2-y^2=11        36-y^2=11    y^2=25

x=+-6
y=+-5
ответ:(6;5),(-6;-5),(-6;5),(6;-5)

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