Math Question
![Find all solutions to the equation in the interval \( [0,2 \pi) \). Enter the solutions in increasing order.
\[
\begin{array}{c}
\cos 2 x=\cos x \\
x=[?], \frac{[] \pi}{[]}, \frac{[] \pi}{[]}
\end{array}
\]
Remember: \( \cos 2 \theta=\cos ^{2} \theta-\sin ^{2} \theta \)](https://d3hlidq5bf9vg0.cloudfront.net/app-server-student/2021/12/12/28259190-35d8-4e30-a03e-a1350bff127b.png "Find all solutions to the equation in the interval \( [0,2 \pi) \). Enter the solutions in increasing order.
\[
\begin{array}{c}
\cos 2 x=\cos x \\
x=[?], \frac{[] \pi}{[]}, \frac{[] \pi}{[]}
\end{array}
\]
Remember: \( \cos 2 \theta=\cos ^{2} \theta-\sin ^{2} \theta \)")
Solution
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