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Автор - failingfat

Решите пожалуйста, срочно!

Ответ

Автор - mishfmiskin

Ответ:

1

Пошаговое объяснение:

a + b = b + c. Значит a = c. b + c = c + d. Значит b = d. Итак a = c и b = d откуда следует что (a^2 + b^2)/(c^2 + d^2) = (a^2 + b^2)/(a^2 + b^2) = 1

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