### Home > APCALC > Chapter 12 > Lesson 12.3.1 > Problem12-94

12-94.

No calculator! The region under the curve $y = e^{x}$ for $x ≤ \ln(2)$ is revolved about the $x$-axis forming an infinite solid. Calculates the exact volume of the solid.

$\lim \limits_{a\to -\infty}\int_a^{\ln(2)}\pi (e^x)^2dx$