Homework should be turned in at the BEGINNING OF CLASS. All problem numbers refer to Tan's book, the required text for the course. You should write up solutions neatly to all problems, making sure to SHOW ALL YOUR WORK. A nonempty subset will be graded. You are strongly encouraged to work on these problems with other classmates, although the solutions you turn in should be your own work.

** Section 8.7 **

Problems: 1, 4, 7, 12, 14, 17, 18, 23, 25

**Hint:** Problems #23 and #25 may require a change in the order of
integration. Sketch the regions of integration for these two problems and
then describe them using both horizontal and vertical cross sections.

** Section 8.8 **

Problems: 5, 6, 11, 15, 16, 19, 20