Find the value .

MATHEMATICS · Subjective · A Level · Mathematics · Trigonometry · Trigonometry

Problem

Find the value tan⁡π5+2tan⁡2π5+4cot⁡4π5⋅cot⁡π5\tan \frac{\pi}{5} + 2 \tan \frac{2\pi}{5} + 4 \cot \frac{4\pi}{5} \cdot \cot \frac{\pi}{5}.

Related theory

Browse the problem library