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Geometry Level 4

tan ⁡ 3 π 11 + 4 sin ⁡ 2 π 11 = n \tan\dfrac{3{\pi}}{11}+4\sin\dfrac{2{\pi}}{11}\ = \sqrt{n}

Find n n


The answer is 11.

Rakshit Joshi by Rakshit Joshi , 26, India

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1 solution

This is a known identity involving 10th degree polynomial in one of its prof.

link text

3 Helpful 0 Interesting 0 Brilliant 0 Confused

Yes ,you may refer his link for approach to the solution..

Rakshit Joshi - 4 years, 11 months ago

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