Предмет: Алгебра, автор: ZaжигаLка

какое число не является решением неравенства х−5 /х+2≪0

Ответы

Автор ответа: Разум365

Ответ: -2

Решение: если подставить число -2 вместо Х ,то в знаменателе бутет 0. А на 0 делить нельзя!

Автор ответа: Пшеница

система:{x-5<=0

{x+2>0

x<=5 и x>-2

получается, что x принадлежит промежутку (-2;5]

точка -2 не является решением неравенства, т.к. неравенство x>-2 не строгое

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