Решите уравнение: \(\large8\cos^2{x}-14\sin{x}+1=0\) \(\large\mathtt{x=(-1)^n\frac{\pi}{6}+\pi{n}, n\in{Z}}\) \(\large\mathtt{x=(-1)^n\frac{\pi}{3}+\pi{n}, n\in{Z}}\) \(\large\mathtt{x=(-1)^n\frac{\pi}{6}+2\pi{n}, n\in{Z}}\)

Задание

Решите уравнение: \(\large8\cos^2{x}-14\sin{x}+1=0\)

\(\large\mathtt{x=(-1)^n\frac{\pi}{6}+\pi{n}, n\in{Z}}\)
\(\large\mathtt{x=(-1)^n\frac{\pi}{3}+\pi{n}, n\in{Z}}\)
\(\large\mathtt{x=(-1)^n\frac{\pi}{6}+2\pi{n}, n\in{Z}}\)