tan-2-pi-7-tan-2-2pi-7-tan-2-3pi-7-cot-2-pi-7-cot-2-2pi-7-cot-2-3pi-7-

Question Number 167501 by cortano1 last updated on 18/Mar/22

\frac{\tan^{2} \frac{π}{7} + \tan^{2} \frac{2 π}{7} + \tan^{2} \frac{3 π}{7}}{\cot^{2} \frac{π}{7} + \cot^{2} \frac{2 π}{7} + \cot^{2} \frac{3 π}{7}} = ?