What reference angle in the first quadrant corresponds to =–120? Answer in radians.

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25-01-2017
Mathematics

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What reference angle in the first quadrant corresponds to =–120? Answer in radians.

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william2007 william2007 · Answer 1 · 2017-01-25T02:59:03+01:00

william2007 william2007

25-01-2017

If you know that pu radians is 180 degrees, then all you need to do is take 180-(-120)=300. To 360, you get the terminal angle to be 60. 60/180=1/3, so the answer is 1/3pi radians

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