MCQ
$\int\limits_{\log \frac{1}{2}}^{\log 2} {\sin \left( {\frac{{{e^x} - 1}}{{{e^x} + 1}}} \right)} \,\,dx =\ .........$
- A$2\cos \frac{1}{2}$
- B$\cos \frac{1}{3}$
- C$2\log 2$
- ✓$0$
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