Santiago Long
07/11/2023 · Middle School
Solve the following equation by finding ALL EXACT solutions in the indicated interval (radians): \( 2 \cos (2 x)-1=0 \quad[0,2 \pi) \) Indicate the question number. You must show your work in solving this problem and upload immediately after the exam. Type your final answer into the provided box below. (Use "pi" for pi.)
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The solutions are \( x = \frac{\pi}{6}, \frac{5\pi}{6}, \frac{7\pi}{6}, \frac{11\pi}{6} \).
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