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OpenStudy (anonymous):
Find the exact value of sin 240°
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OpenStudy (zzr0ck3r):
2/3(2PI) = 4PI/3 look on the unit circle
OpenStudy (cwrw238):
this is in 3rd quadrant and = - sin (240-180) = -sin 60
OpenStudy (anonymous):
Well these are my options: negative square root of 2 divided by 2 negative square root of 3 divided by 2 one-half square root of 2 divided by 2
OpenStudy (cwrw238):
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