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OpenStudy (prepfortears):
Will award medal Find an exact value cos((19pi)/12)
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OpenStudy (anonymous):
Look at your unit circle, did you notice how this value is not a part of what is labeled?
OpenStudy (anonymous):
|dw:1423519315959:dw|
OpenStudy (anonymous):
Every time you go around the unit circle it is 2pi.
OpenStudy (anonymous):
Your value is greater than 2pi. \[\frac{ 19\pi }{ 2 }~=~9\pi~and~\frac{ \pi }{ 2 }\](as a mixed fraction)
OpenStudy (anonymous):
|dw:1423519583303:dw|
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