Do problems ## 1,3 on page 174. Do problem #4 on page 174. Try to do what I did with mod 5 computations in class. Start with the computation of the order of [2] and then use Proposition 3 (page 173) to get all other orders. Do ## 13,14 on page 175. Do ## 19,20 on page 177. Do ## 21,22,23,25 on page 178. Do #40 on page 181. ------------------------------- The quiz on Friday will be on orders of elements in Z/mZ, such as the formula from Proposition 3, and Fermat's Theorem. Euler's Theorem will not be needed.