Evaluate the definite integral with e and u sub

The video tutorial explains how to solve an integral problem using the use substitution method. The instructor begins by setting up the problem and identifying the need for substitution. They explain the process of compensating for missing constants and proceed to calculate the integral. The tutorial covers evaluating and simplifying the expression, using exponent rules, and finally deriving the result. The instructor emphasizes understanding each step and provides insights into the mathematical concepts involved.

How is the expression E to the Ln of 2 simplified?

What is the final numerical result obtained from the integral evaluation?