Trigonometric Tables Are Insufficient!

Geometry Level 4

tan⁡2π16+tan⁡23π16+tan⁡25π16+tan⁡27π16= ? \large \tan^{2} \frac{\pi}{16} + \tan^{2} \frac{3\pi}{16} + \tan^{2} \frac{5\pi}{16} + \tan^{2} \frac{7\pi}{16} = \, ?

Tapas Mazumdar by Tapas Mazumdar
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