MCQ
$\int\limits_0^{\frac{\pi }{2}} {\frac{{{3^{\sin x}}}}{{{3^{\sin x}} + {3^{\cos x}}}}} \,dx =\ .........$
- A$2$
- ✓$\frac{\pi }{4}$
- C$\frac{\pi }{2}$
- D$\pi $
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