Решите неравенство x^2 - 49 < 0. ПоЖАЛУЙСТА БЫСТРЕЕ - №23790308

Решите неравенство x^2 - 49 < 0. ПоЖАЛУЙСТА БЫСТРЕЕ
- Предмет:
  Алгебра
- Автор:
  crystalweber
- 5 лет назад

Ответы 2

спасябон
- Автор:
  elwood
- 5 лет назад
- 0
x^2 - 49 < 0(x-7)*(X+7)<0{ X-7<0{ X+7>0{ X-7>0{ X+7<0{ X<7{ X>-7{ X>7{ X<-7X∈(-7,7)X∈∅Ответ: x∈(-7,7)
- Автор:
  mombodp6zh
- 5 лет назад
- 0
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