Math 213 -- Prof. Sachs, Homework 3

    Due: In class, Monday, Sept. 22

   from text:

    Section 13.1, routine exercises: 9, 13, 15, 31
    harder ones: 44

    Section 13.3, routine exercises: 11, 15
    harder ones: 17

    Section 13.4, routine exercises: 4, 10, 11
    harder ones: 18

    Another harder one: review, page 945: 19

    Section 16.1, routine: 1-8 (great practice)

    Section 16.2, routine exercises: 7, 9, 15