Find the exact value of cosine Pi / 3 express your answer with a rational denominator

Nestor Perez asked Aug 4, 2023

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13 votes

Nestor Perez asked Aug 4, 2023

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19 votes

it is given that,

the expression is

cosine Pi/3

we know that

so,

$\cos (\pi)/(3)=\cos (180)/(3)=\cos 60=(1)/(2)$

thus, the answer is 1/2

Ctpenrose answered Aug 11, 2023

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