- #1

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- Homework Statement
- Please see below

- Relevant Equations
- Please see below

For this problem,

The solution is,

However, why did they not use limits of integration for the integral in red? When I solved this, I used

as limits of integration.

I see that is not necessary since you get the same answer either way, but is there a deeper reason?

Many thanks!

The solution is,

However, why did they not use limits of integration for the integral in red? When I solved this, I used

as limits of integration.

I see that is not necessary since you get the same answer either way, but is there a deeper reason?

Many thanks!