представьте выражение 2sina×cos2a в виде суммы. пожалуйста, срочно надо - №29281716

представьте выражение 2sina×cos2a в виде суммы. пожалуйста, срочно надо
- Предмет:
  Математика
- Автор:
  slimjuev
- 6 лет назад

Ответы 1

2sina*cos2a=sin(a+2a)+sin(a-2a)=sin3a+sin(-a) формула sinх*cosу в приложении
- Автор:
  higginslogan
- 6 лет назад
- 0
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