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OpenStudy (anonymous):
I need help on finding reference angles, what is the reference angle of a 90 degrees, 180 degrees, 270 degrees, and a 360 degrees angle? I am so confused!
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OpenStudy (anonymous):
90=pi/2 180=pi 270=3pi/2 360=2pi
OpenStudy (anonymous):
also look up the unit circle it is all there
OpenStudy (anonymous):
Reference angles deal with pi?
OpenStudy (anonymous):
he is talking about in radians. I guess you haven't learned that yet.
OpenStudy (anonymous):
ya, all I learn so far is something like this: |dw:1365999050610:dw|
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