Discrete Mathematics
Problems of Midterm exam in Chapter 5
Page 252, 5.1, Problem 7
Page 258, 5.2, Problem 3
Page 266, 5.3, Problem 13
Page 272, 5.4, Problem 5
Page 277, 5.5, Problem 5
Page 278, 5.5, Problem 13
Page 289, 5.6, Problem 15
Page 293, 5.7, Problem 3