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Six tangents (Posted on 2014-08-17) Difficulty: 3 of 5
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tan(pi/13)*tan(2pi/13)*tan (3pi/13)*tan(4pi/13)*tan(5pi/13)*tan (6pi/13) = 13^1/2.

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edu | Comment 9 of 10 |
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  Posted by Jason Ochoa on 2022-04-27 01:26:36
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