$ \int_{-\frac{\pi}{2}}^{\frac{\pi}{2}} \frac{dx}{e^{\sin x}+1} $ का मान ज्ञात कीजिए।

  • A
    $ 0 $
  • B
    $ 1 $
  • C
    $ -\frac{\pi}{2} $
  • D
    $ \frac{\pi}{2} $

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