This answer sheet is designed to give both the answers to the questions in Homework 2 and some amount of explanation as to how the problems should be done. It is not meant as a substitute for talking to me about the homework if you have questions. Please ask me after class, or send me-email, or come to my office hours if you still have questions after reading this sheet. My email address is ganderson@ucsd.edu, and my office hours are MW 2:10-3:30 pm in 1539 Galbraith Hall.