How to find potential over a line charge

[vela]

Yup, that's right. If you rationalize the denominator in your first result, you can turn it into your second result.

 

[baltimorebest]

Oh ok well I will check that later and take your word on it for tonight. Thank you so much for your help on this problem.

 

[baltimorebest]

I tried to plug in values to see if my two answers were equivalent, and it wasn't working out. Maybe it's just because I am tired, but I just thought I would let you know. Thanks again.