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OpenStudy (elleblythe):
Evaluate: sin(11pi/12)cos(11pi/12) + cos(5pi/12)sin(7pi/12)
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OpenStudy (elleblythe):
I'm not sure if there is supposed to be a correction and the 7pi/12 is actually supposed to be a 5pi/12....
OpenStudy (anonymous):
it is rad2+rad6 with denominator 4
OpenStudy (anonymous):
sin(pi/3)cos(pi/4)+cos(pi/4)sin(pi/6) use xy coordinates
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