Homework 13

Read: 5.5 up to start of 5.5.1

Turn in: 5.66, 5.77, 5.78, 5.79, 5.80, 5.82

• Working with cosets and quotients can be tough at first, but you’ll make sense of them. Facts 5.74 and 5.76 are very important.
• There are hints in the back of the book for 5.79 and 5.80. The hint for 5.79 might also help with 5.78(5) but there are other ways to approach it too.

Extra practice: 5.72, 5.73, 5.81