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OpenStudy (anonymous):
**MEDAL** find the exact value of the expression: sin(3pi/4) + sin(5pi/6)
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OpenStudy (anonymous):
using identity sinA + sinB = 2 cos[(A-B)/2] sin[(A+B)/2] you can get the answer
OpenStudy (anonymous):
what the **** is identity i ask these questions cause the stupid online tecahers dont give mother bleeping notes that say anything ugh
OpenStudy (e.mccormick):
@Klong0091 Download one of the trig sheets here: http://tutorial.math.lamar.edu/cheat_table.aspx They have the assorted identities.
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