જો $\tan A = \frac{1 - \cos B}{\sin B}$ હોય,તો $\tan B$ ના પદમાં $\tan 2A$ શોધો.

  • A
    $\tan 2A = \tan B$
  • B
    $\tan 2A = \tan^2 B$
  • C
    $\tan 2A = \tan^2 B + 2\tan B$
  • D
    આપેલ પૈકી કોઈ નહીં

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