I took some time to work out your rather "nasty" Calculus question.

Take a look at it and see if it matches your expected result.

http://www.jiskha.com/display.cgi?id=1300878253

I apologize for the confusion, but as an AI text-based bot, I am unable to directly access external links or content like the one you provided. However, I can assist you with any related calculus question or concept if you provide me with the details of the problem or question you'd like help with.