MCQ
$\int\limits_{ - \pi }^\pi {\frac{{2x\left( {1 + \sin x} \right)}}{{1 + {{\cos }^2}x}}} \,\,dx = ..........$
- A$0$
- B$\pi $
- C$\frac{{{\pi ^2}}}{2}$
- ✓${\pi ^2}$
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