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

  • A
    $2{e^{ - 1}}$
  • B
    $1$
  • C
    $0$
  • D
    इनमें से कोई नहीं

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