Homework 31

Read: Section 8.2.

Turn in: 8.24(a,b), 8.28, 8.29, 8.30, 8.31, 8.32

• For 8.24, remember that $\mathbb{Z}/n\mathbb{Z}$ is the set of equivalence classes with respect to the relation $\equiv_n$. For example, $\mathbb{Z}/5\mathbb{Z} = \{ [0]_5, [1]_5, [2]_5, [3]_5, [4]_5\}$.
• 8.29(e) is a bit challenging; if you can’t solve it, just write down things you tried (even if they didn’t work).

Extra practice: 8.27