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OpenStudy (anonymous):
Find all solutions to the equation. cos x = -1/2
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OpenStudy (anonymous):
@SithsAndGiggles @zzr0ck3r
OpenStudy (zzr0ck3r):
do you know what the unit circle looks like?
OpenStudy (anonymous):
yes
OpenStudy (zzr0ck3r):
do you know the two points between 0 and 2pi where cos(x) = -1/2?
OpenStudy (mathmate):
|dw:1405730255630:dw|
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