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Автор - Vladislv

Пожалуйста, помогите
Г и Е.

Ответ

Автор - karkarkar10
 frac{1}{x(y-x)} - frac{1}{y(y-x)} = frac{y}{xy(y-x)}- frac{x}{xy(y-x)}= frac{y-x}{xy(y-x)}= frac{1}{xy}
 frac{d+1}{d+4}- frac{d ^{2}-4}{(d-4)(d+4)}= frac{(d^{2}-4)-(d^{2}-4) }{d^{2}-16 }= frac{1}{ d^{2}-16 }

Начальный пример потом пишешь "=" и решаешь как написал

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