Question

The value of the definite integral $\underset{-\pi /4}{\overset{\pi /4}{\int }}\frac{e^x{\sec }^{2}x}{e^{2x}-1}dx$ is equal to

• A. 0
• B. 2
• C. $e$
• D. $2e$

Answer 1

Answer: (A)

$f(x)$is odd
$\therefore I=0$.