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DENIUS [597]
2 years ago
13

What's the exact value of cos 2pi/3?​

Mathematics
1 answer:
Svetach [21]2 years ago
3 0

it's answer is 12 it may helpful to u

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Using <u>complex numbers and radicals</u>, it is found that the correct option is C.

When a complex number is a root of a polynomial function, it's conjugate also has to be.

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The same is valid for radicals, as they are in the \pm format.

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Hence, option C is correct.

For more on <u>complex numbers and radicals</u>, you can check brainly.com/question/25173944

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Step-by-step explanation:

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Whoever answers gets brainlist!
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