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OpenStudy (anonymous):
express as a single fraction the exact value of sin 75
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OpenStudy (anonymous):
your job is to recognize \(75=45+30\) and then use the addition angle formula do you know it?
OpenStudy (anonymous):
\[\sin(\alpha +\beta)=\sin(\alpha)\cos(\beta)+\sin(\beta)\cos(\alpha)\] replace \(\alpha\) by 45 and \(\beta\) by 30 and evalutate
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