MCQ
$\int_{0}^{\pi}\frac{xdx}{1+\cos\alpha\sin x},0 < \alpha < \pi =\ ..........$
- ✓$\frac{{\pi \alpha }}{{\sin \alpha }}$
- B$\frac{{\pi \alpha }}{{\cos \alpha }}$
- C$\frac{{\pi \alpha }}{{1 + \sin \alpha }}$
- D$\frac{\alpha }{{1 + \cos \alpha }}$
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