Just when I thought I was making some progress. I find that I have no idea at all how to approach finding this integral:
A nudge in the right direction would be very much appreciated.
P.S Is this site compromised? Firefox says that it is and I had serious problems trying to post the other day. I recommended the site to a friend of mine but she said she will not use it because Chrome says it's a security risk. That's such a shame, there are so many brilliant people here who can help people who are stuggling with maths. I tried posting this in the appropriate foum, but was not allowed to do so.