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OpenStudy (anonymous):
PLEASE HELP! Express sin36degrees - sin32degrees as a product. a. -2cos34degrees sin2degrees b. 2cos34degrees sin2degrees c. 2sin34degrees cos2degrees d. -2sin34degrees cos2degrees
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OpenStudy (anonymous):
Oh wait, I got b. Can you please clarify?
OpenStudy (anonymous):
\[\large \sin(C) - \sin(D) = 2\cos(\frac{C + D}{2}) \sin(\frac{C - D}{2})\]
OpenStudy (anonymous):
Well Done...
OpenStudy (anonymous):
Thanks!
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