$\int \frac{\cos 2x - \cos 2\alpha}{\cos x - \cos \alpha} dx =$

  • A
    $2 \cos x + 2x \cos \alpha + c$,જ્યાં $c$ એ સંકલનનો અચળાંક છે.
  • B
    $2 \cos x - 2x \cos \alpha + c$,જ્યાં $c$ એ સંકલનનો અચળાંક છે.
  • C
    $2 \sin x + 2x \cos \alpha + c$,જ્યાં $c$ એ સંકલનનો અચળાંક છે.
  • D
    $2 \sin x + 2x \sin \alpha + c$,જ્યાં $c$ એ સંકલનનો અચળાંક છે.

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