$\triangle ABC$ માં,$\frac{a-b}{a+b} = $

  • A
    $\cot \left(\frac{A-B}{2}\right) \cot \frac{C}{2}$
  • B
    $\tan \left(\frac{A+B}{2}\right) \tan \frac{C}{2}$
  • C
    $\tan \left(\frac{A-B}{2}\right) \tan \frac{C}{2}$
  • D
    $\tan \left(\frac{A+B+C}{2}\right)$

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