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Evaluate sin(6°) (Posted on 2023-05-26)

Find the numerical value of sin(6°)

No Solution Yet Submitted by Ady TZIDON

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| Comment 1 of 4

This is a common derivation, which I don’t feel like entering in here.

The gist is that sin(6)=sin(36-30) so you can use the angle difference formula. 36+180/5 so it’s sine and cosine can be derived from a regular pentagon and it’s diagonals.

Posted by Jer on 2023-05-26 09:15:10

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