fraccot{theta}csc{theta} = costheta

Часто Задаваемые Вопросы

• $$\text{Giải quyeˆˊt cho }\theta$$ \(\frac{\cot{\theta}}{\csc{\theta}} = \cos{\theta}\)

  

  $$\theta \ne k\pi ,k\in \mathbb{Z}$$

• Kiểm chứng \(\frac{\cot{\theta}}{\csc{\theta}} = \cos{\theta}\)

  

  $$\text{истинный}$$