$ \int \frac{\cos 2x - \cos 2\theta}{\cos x - \cos \theta} dx $ का मान ज्ञात कीजिए।

  • A
    $ 2(\sin x + x \cos \theta) + C $
  • B
    $ 2(\sin x - x \cos \theta) + C $
  • C
    $ 2(\sin x + 2x \cos \theta) + C $
  • D
    $ 2(\sin x - 2x \cos \theta) + C $

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