Найдите пятый член бесконечно убывающей геометрической прогрессии 3; - 1; 1/3

Найдите пятый член бесконечно убывающей геометрической прогрессии 3; - 1; 1/3
- Предмет:
  Математика
- Автор:
  casehatfield
- 5 лет назад

Ответы 3

Опечатка, правильно будет так: q=в2:в1
- Автор:
  boo-boo
- 5 лет назад
- 0
хХАХХАХА ЕЕ ХОЧЕШЬ ЛИ ТЫ КОЕ ЧТО ЕЩЁ РЕШИТЬ ?
- Автор:
  marleekjgm
- 5 лет назад
- 0
Ответ:
1/27
Пошаговое объяснение:
В этом задании 5 член легче найти так: найдем знаменатель q=в2:в2= -1:3= -1/3, тогда в4= в3*q=-1/9; далее в5=в4*q=1/27.
Можно воспользоваться формулой n -го члена, в5=в1*q^4= 3 * 1/81=1/27
- Автор:
  joliecardenas
- 5 лет назад
- 0
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Найдите пятый член бесконечно убывающей геометрической прогрессии 3; - 1; 1/3

Ответы 3

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