Question

The value of the integral $\int\limits^{\pi}_{-\pi}\frac{\cos^2x}{1+a^x}dx,$
a > 0 is

• A. 1
• B. 0
• C. $\frac{π}{2}$
• D. π

Answer 1

Answer: (C)

$\frac{π}{2}$

Answer 2

The correct option is (C) : $\frac{π}{2}$.