rss feed url

Thanks. Are you saying that my rss feed url is – for example – http://mysite.com/wordpressblog/feed/
eg when submitting to a rss feed directory? And that this is the same as the examples below?

I also found the following:
There are times when you want to tell someone your site’s feed address or URL, or you need it to submit it to search engines and directories, many of which now accept feed URL submissions. There are four possible URLs for each of your feeds. Any of these will work.
http://example.com/wp-rss.php
http://example.com/wp-rss2.php
http://example.com/wp-rdf.php
http://example.com/wp-atom.php