# Homework Set 5

**Due:** March 6 at the beginning of class

**Collaboration** in groups is ok, even encouraged. However, each of you *must* turn in a separate writeup. (But please do indicate with whom you collaborated to make life easier for the grader.)

**Section 2.5:** 17, 34ab

**Section 3.1:** 24

**Section 3.2:** 1bde, 4bc, 12, 18

**Section 3.3:** 13c, 14d (you might need to look at Thm 6 of the book--which wasn't yet covered in class, but it should look very familiar once you look at it in detail)