Math / Trigonometry

Questione $x$ is in radians. State the exact solutions, if a solutions, respond with DNE. $2 \cos ^{2} x-\cos x=1$ th a comma.

Studdy Solution
The solutions are $x = 0$ , $x = \frac{2\pi}{3}$ , and $x = \frac{4\pi}{3}$ .

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