an арифметическая прогрессия a1=18,d=-0,4 Найти А16-? - №31549832

an арифметическая прогрессия a1=18,d=-0,4 Найти А16-?
- Предмет:
  Математика
- Автор:
  zoee3nn
- 6 лет назад

Ответы 1

Ответ:
12
Пошаговое объяснение:
а16=а1+15•d=18+15•(-0,4)=18-6=12
- Автор:
  zeus44
- 6 лет назад
- 0
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