Calculus II question regarding arc length.
I'm using Paul's Online Notes and am having trouble understanding why the limits of integration in the first example don't change after u-substitution is utilized, and I have a general question about u-substitution as well. http://tutorial.math.lamar.edu/Classes/CalcII/ArcLength.aspx

Hey! We 've verified this expert answer for you, click below to unlock the details :)

I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!

In the first place, there was no u-substitution in the first example.

(If there's another way to do it, go ahead, please.)

Looking for something else?

Not the answer you are looking for? Search for more explanations.

## More answers

Looking for something else?

Not the answer you are looking for? Search for more explanations.