The value of _ - ^ ^ 2 x 1+a^ x d x , a > 0 is

Mathematics · JEE Advanced · NTA ExamsIntegral Calculus

The value of \(\int_{-\pi}^{\pi} \frac{\cos ^{2} x}{1+a^{x}} d x\), a > 0 is
  1. π
  2. aπ
  3. π/2
  4. 2π

Answer

(C) π/2

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