यदि $a > 0$ है, तो $\int_{-\pi}^{\pi} \frac{\sin^2 x}{1+a^x} dx$ का मान ज्ञात कीजिए।

  • A
    $\frac{\pi}{2}$
  • B
    $\pi$
  • C
    $\frac{2\pi}{2}$
  • D
    $a\pi$

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