Find exact value of \sin 495 degrees without a calculator?



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Find exact value of sin495 degrees without a calculator?

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Skilled2021-08-17Added 109 answers

For sinα you must have ratio of side opposite of α and chord total triangle angels is 180 and sin of 180 is 0 so i think sin495 be a negative numbersinα=ac ( side opposit of alpha / chord)

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