SOLUTION: Find the reference Angle for 7pi ------- 9

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Question 977970: Find the reference Angle for 7pi
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9
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Find the reference angle of (7/9)pi
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(7/9)pi is (1/9)pi above the horizontal axis.
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So, the reference angle is (1/9)pi.
Cheers,
Stan H.
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