Упростить sin(альфа+бета) делёное на cosальфа*cosбета

Упростить sin(альфа+бета) делёное на cosальфа*cosбета
- Предмет:
  Математика
- Автор:
  trystangifa
- 5 лет назад

Ответы 1

$\dfrac{\sin\left(\alpha+\betaight)}{\cos\alpha\cos\beta}=\dfrac{\sin\alpha\cos\beta+\sin\beta\cos\alpha}{\cos\alpha\cos\beta}=\dfrac{\sin\alpha\cos\beta}{\cos\alpha\cos\beta}+\dfrac{\sin\beta\cos\alpha}{\cos\alpha\cos\beta}=\mathrm{tg}~\alpha+\mathrm{tg}~\beta$
- Автор:
  laci
- 5 лет назад
- 0
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Упростить sin(альфа+бета) делёное на cosальфа*cosбета

Ответы 1

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