MCQ
$\int\limits_{\frac{{ - \pi }}{2}}^{\frac{\pi }{2}} {\frac{{{{\sin }^2}x}}{{1 + {{\left( {2017} \right)}^x}}}\,dx} $ =
- A$\frac {\pi}{4}$
- B$\frac {\pi}{2}$
- C$\pi $
- D$0$
$ = \int\limits_0^{\pi /2} {{{\sin }^2}x} dx = \frac{\pi }{4}$
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