Question

If $\underset{\ln 2}{\overset{x}{\int }}\frac{dt}{\sqrt{e^t-1}}=\frac{\pi }{6}$, then $x$ is equal to

• A. 4
• B. $\ln 4$
• C. 8
• D. $\ln 8$

Answer 1

Answer: (B)

Put $e^t-1=y^2$