Предмет: Алгебра, автор: SoundtrackGify

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Автор ответа: ilasovadiana00
1

Ответ:

а)

- \frac{a + b - c}{b + c + a}

SoundtrackGify: спасибо, что на счёт второго?
ilasovadiana00: не знаю
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