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OpenStudy (anonymous):
@ganeshie8 I need help with solving a double angles trig identity question is in attached image
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OpenStudy (anonymous):
OpenStudy (anonymous):
The answer i ended up getting is |dw:1417638254484:dw| The answer the book got is \[\cos \frac{ \pi }{ 12 }=\pm \frac{ \sqrt{\sqrt{3}+2} }{2 }\]
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