Решите уравнение \(cos(-3x)=1\) . \(\frac{2\pi}{3}n, n\in Z\) \(\frac{\pi}{3}n, n\in Z\) \(\pi n, n\in Z\)
Задание

Решите уравнение \(cos(-3x)=1\) .

  • \(\frac{2\pi}{3}n, n\in Z\)
  • \(\frac{\pi}{3}n, n\in Z\)
  • \(\pi n, n\in Z\)