$\tan \frac{\pi}{5}+2 \tan \frac{2 \pi}{5}+4 \cot \frac{4 \pi}{5}$ ની કિંમત શોધો.

  • A
    $\cot \frac{\pi}{5}$
  • B
    $\cot \frac{2\pi}{5}$
  • C
    $\cot \frac{3\pi}{5}$
  • D
    $\cot \frac{4\pi}{5}$

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