Math 310 Collected Homework #2
(due Wednesday, 4/16)

1. Prove that if x is a rational number and y is an irrational number, then their sum x+y is an irrational number

2-5. From the Problem Set I (textbook, pages 53-57) do problems #11, #12, #13, and #16.

6. From the Problem Set I (textbook, pages 53-57), problem #10

7. Let m and n be any two integers. Show that the product mn is odd if and only if both m and n are odd.