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OpenStudy (anonymous):
Use a half-angle identity to find the exact value of sin(75). a.[sqrt((2)+sqrt(3))]/2 b. [sqrt((2)+sqrt(3))] c.[sqrt((2)-sqrt(3))]/2 d. [sqrt((2)-sqrt(3))]
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OpenStudy (alekos):
Best way to do it is using sin (30 +45)
OpenStudy (alekos):
Then use the sine sum formula
OpenStudy (anonymous):
Thank you. ^^
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