But I'm not sure how to use the limit at infinity for this. I'm also pretty sure I'm not meant to be getting zero at the answer but something depending on a.
Any help would be greatly appreciated!
But I'm not sure how to use the limit at infinity for this. I'm also pretty sure I'm not meant to be getting zero at the answer but something depending on a.
Any help would be greatly appreciated!
Remember that when it's an improper integral you have to take the limit as lets say b---> infinity.
An easy way to do this is to use the fuction of cosh =
You may have to use l'hospitals for the limit since you might end up with a form infinity - infinity.