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2001

JEE Main 2001 Mathematics question on Definite Integrals and Areas

The value of ∫−ππcos⁡2x1+axdx\int_{-\pi}^{\pi} \frac{\cos^2 x}{1 + a^x} dx, a>0a > 0, is
  1. A.
    π\pi
  2. B.
    aπa\pi
  3. C.
    πa\frac{\pi}{a}
  4. D.
    2π2\pi
Show answer

Correct option: C

[2001]

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