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Mathematics 46 Online
OpenStudy (cyclone3260):

How to find the positive and negative coterminal angles for 7pi/9 ?

OpenStudy (danjs):

You start the angle measure at the +x axis direction. Coterminal means they share the end side. The total angle for the whole circle is 360 degrees or 2pi radians. So the sum of the two coterminal angles should be 2pi radians

OpenStudy (danjs):

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