Due to the academic festival, there is no class on Friday, May 6th. You are strongly encouraged to participate: not only because you will learn some interesting things, but also you will do the same thing soon. It would be nice to see you peers give talks.
Here is a set of suggested problems, they are never due. The content will show up in self-diagnose quizzes. Brush up your integration skills!
Section 15.2: 18,21,25,28,30
Section 15.3: 1,6,10,17,22,39,41,42,46,48