$\tan \alpha + 2 \tan 2 \alpha + 4 \tan 4 \alpha + 8 \cot 8 \alpha = $

  • A
    $\sin \alpha$
  • B
    $\cos \alpha$
  • C
    $\tan \alpha$
  • D
    $\cot \alpha$

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निम्नलिखित में से कौन सी संख्या/संख्याएँ परिमेय हैं?

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