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Элементарные тригонометрические уравнения

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Theory :: Example task

Решите уравнение \(\displaystyle \cos(x)=\frac{1}{2}{\small .}\)

\(\displaystyle x_1=\)
\frac{\pi}{3}
\(\displaystyle +2\pi n\ , \, n\in \mathbb{Z}\)

Первое слагаемое из  интервала \(\displaystyle \left(0;\,\frac{\pi}{2}\right){\small .}\) 
 

\(\displaystyle x_2=\)
-\frac{\pi}{3}
\(\displaystyle +2\pi n\ , \, n\in \mathbb{Z}\)

Первое слагаемое из интервала \(\displaystyle \left(-\frac{\pi}{2};\,0\right){\small .}\)

Theory :: Solution
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