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Автор - gdtwilight

Найди область определения функции

Ответ

Автор - QDominus

Так как знаменатель не может быть равен нулю, то

7x + 4≠0 \ 7x≠ - 4 \ x≠ -  frac{4}{7}

Ответ: хє(-∞;-4/7)U(-4/7;+∞)

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