ધારો કે $\alpha$ અને $\beta$ શૂન્યતર વાસ્તવિક સંખ્યાઓ છે જેથી $2(\cos \beta - \cos \alpha) + \cos \alpha \cos \beta = 1$ થાય. તો નીચેનામાંથી કયું/કયા વિધાન સાચું/સાચા છે?

  • A
    $\tan \left(\frac{\alpha}{2}\right) + \sqrt{3} \tan \left(\frac{\beta}{2}\right) = 0$
  • B
    $\sqrt{3} \tan \left(\frac{\alpha}{2}\right) + \tan \left(\frac{\beta}{2}\right) = 0$
  • C
    $\tan \left(\frac{\alpha}{2}\right) - \sqrt{3} \tan \left(\frac{\beta}{2}\right) = 0$
  • D
    $\sqrt{3} \tan \left(\frac{\alpha}{2}\right) - \tan \left(\frac{\beta}{2}\right) = 0$

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