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How to evaluate cot pi/7

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Evaluate cot pi/y

Oct 16th, 2017

solution 

cot pi/7

Input it as 1/(tan(pi/7)) 

The answer is 109.4 degrees or 1.73 radians.

please choose my answer

Jul 14th, 2014

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Oct 16th, 2017
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Oct 16th, 2017
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