Question

$\underset{0}{\overset{\ln 5}{\int }}\frac{e^x\sqrt{e^x-1}}{e^x+3}dx=$

• A. $4-\pi$
• B. $6-\pi$
• C. $5-\pi$
• D. None

Answer 1

Answer: (A)

put $e^x-1=t^2$