Найдите корни уравнения \(\arccos^2x-\frac{3\pi}{4}\arccos{x}+\frac{{\pi}^2}{8}=0.\) \(0; \frac{\sqrt2}{2}\) \(0; -\frac{\sqrt2}{2}\) \(\frac{\pi}{2},\frac{\pi}{4}\) \(0;\frac{1}{2}\) \(\frac{\pi}{2},\frac{7\pi}{4}\)

Задание

Найдите корни уравнения \(\arccos^2x-\frac{3\pi}{4}\arccos{x}+\frac{{\pi}^2}{8}=0.\)

\(0; \frac{\sqrt2}{2}\)
\(0; -\frac{\sqrt2}{2}\)
\(\frac{\pi}{2},\frac{\pi}{4}\)
\(0;\frac{1}{2}\)
\(\frac{\pi}{2},\frac{7\pi}{4}\)