જો $\tan \left(\frac{\pi}{4}+\alpha\right)=\tan ^3\left(\frac{\pi}{4}+\beta\right)$ હોય,તો $\tan (\alpha+\beta) \cot (\alpha-\beta)=$

  • A
    $\sec ^2 2 \beta+\tan ^2 2 \beta$
  • B
    $\operatorname{cosec}^2 2 \beta+\cot ^2 2 \beta$
  • C
    $2\left(\sec ^2 2 \beta+\tan ^2 2 \beta\right)$
  • D
    $4\left(\sec ^2 2 \beta+\tan ^2 2 \beta\right)$

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