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Find the exact value of cos 2π/3.

Find the exact value of cos 2π/3.
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3 votes
Find the exact value of cos 2π/3.

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User Musubi
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8.2k points

1 Answer

2 votes
That angle is 120 degrees. It's cosine is -0.5 .
answered
User Beckelmw
by
7.8k points
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