$\int_{0}^{\pi} \frac{x \, dx}{1+\cos \alpha \sin x}, (0 < \alpha < \pi)$ का मान ज्ञात कीजिए।

  • A
    $\frac{\pi \alpha}{\sin \alpha}$
  • B
    $\frac{\pi \alpha}{\cos \alpha}$
  • C
    $\frac{\pi \alpha}{1+\sin \alpha}$
  • D
    $\frac{\pi \alpha}{1+\cos \alpha}$

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