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QuestionArt
Find the exact value of cos(2π/ 3) in its simplest form with a rational denominator.
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Answer
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Step 1I'll solve this step-by-step using the precise LaTeX formatting guidelines:
Step 2: Recall the cosine of special angle formula
The angle $$2\pi/3$$ is a standard angle in trigonometry.
We can solve this by understanding its position on the unit circle.
Final Answer
The solution is exact, in its simplest form, and has a rational denominator as requested.
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