Math 4281

Homework 2

Due Monday, January 31, 2011

The problem set is due at the beginning of the class on Monday.

Section 1.7:    Exercises 4-7, 11 and

A little clarificiation for Exercise 1.7.7.: [2] = [8] are not distinct residue classes modulo 6, because they both consist of numbers 2, 8, 14,... and -4, -10, -16,...

1.7.16: Find an integer x such that x ≡ 3 (mod 4) and x ≡ 5 (mod 9).

Section 1.8:    Exercises 5, 6, 8, 10