On this webpage you will find my solutions to Chapters 1-5 of the eighth edition of "Calculus: Early Transcendentals" by James Stewart. Solutions to Chapters 6-11 are here, and solutions to Chapters 12-17 are here. Here is a link to the book's page on amazon.com. If you find my work useful, please consider making a donation. Thank you.

Section 1.1 Section 1.2
Exercise 1 Exercise 21 Exercise 41 Exercise 61 Exercise 1 Exercise 21
Exercise 2 Exercise 22 Exercise 42 Exercise 62 Exercise 2 Exercise 22
Exercise 3 Exercise 23 Exercise 43 Exercise 63 Exercise 3 Exercise 23
Exercise 4 Exercise 24 Exercise 44 Exercise 64 Exercise 4 Exercise 24
Exercise 5 Exercise 25 Exercise 45 Exercise 65 Exercise 5 Exercise 25
Exercise 6 Exercise 26 Exercise 46 Exercise 66 Exercise 6 Exercise 26
Exercise 7 Exercise 27 Exercise 47 Exercise 67 Exercise 7 Exercise 27
Exercise 8 Exercise 28 Exercise 48 Exercise 68 Exercise 8 Exercise 28
Exercise 9 Exercise 29 Exercise 49 Exercise 69 Exercise 9 Exercise 29
Exercise 10 Exercise 30 Exercise 50 Exercise 70 Exercise 10 Exercise 30
Exercise 11 Exercise 31 Exercise 51 Exercise 71 Exercise 11 Exercise 31
Exercise 12 Exercise 32 Exercise 52 Exercise 72 Exercise 12 Exercise 32
Exercise 13 Exercise 33 Exercise 53 Exercise 73 Exercise 13
Exercise 14 Exercise 34 Exercise 54 Exercise 74 Exercise 14
Exercise 15 Exercise 35 Exercise 55 Exercise 75 Exercise 15
Exercise 16 Exercise 36 Exercise 56 Exercise 76 Exercise 16
Exercise 17 Exercise 37 Exercise 57 Exercise 77 Exercise 17
Exercise 18 Exercise 38 Exercise 58 Exercise 78 Exercise 18
Exercise 19 Exercise 39 Exercise 59 Exercise 79 Exercise 19
Exercise 20 Exercise 40 Exercise 60 Exercise 80 Exercise 20
Section 1.3 Section 1.4
Exercise 1 Exercise 23 Exercise 45 Exercise 1 Exercise 23
Exercise 2 Exercise 24 Exercise 46 Exercise 2 Exercise 24
Exercise 3 Exercise 25 Exercise 47 Exercise 3 Exercise 25
Exercise 4 Exercise 26 Exercise 48 Exercise 4 Exercise 26
Exercise 5 Exercise 27 Exercise 49 Exercise 5 Exercise 27
Exercise 6 Exercise 28 Exercise 50 Exercise 6 Exercise 28
Exercise 7 Exercise 29 Exercise 51 Exercise 7 Exercise 29
Exercise 8 Exercise 30 Exercise 52 Exercise 8 Exercise 30
Exercise 9 Exercise 31 Exercise 53 Exercise 9 Exercise 31
Exercise 10 Exercise 32 Exercise 54 Exercise 10 Exercise 32
Exercise 11 Exercise 33 Exercise 55 Exercise 11 Exercise 33
Exercise 12 Exercise 34 Exercise 56 Exercise 12 Exercise 34
Exercise 13 Exercise 35 Exercise 57 Exercise 13 Exercise 35
Exercise 14 Exercise 36 Exercise 58 Exercise 14 Exercise 36
Exercise 15 Exercise 37 Exercise 59 Exercise 15 Exercise 37
Exercise 16 Exercise 38 Exercise 60 Exercise 16 Exercise 38
Exercise 17 Exercise 39 Exercise 61 Exercise 17
Exercise 18 Exercise 40 Exercise 62 Exercise 18
Exercise 19 Exercise 41 Exercise 63 Exercise 19
Exercise 20 Exercise 42 Exercise 64 Exercise 20
Exercise 21 Exercise 43 Exercise 65 Exercise 21
Exercise 22 Exercise 44 Exercise 66 Exercise 22
Section 1.5 Chapter 1 Review
Exercise 1 Exercise 21 Exercise 41 Exercise 61 Exercise 1 Exercise 21
Exercise 2 Exercise 22 Exercise 42 Exercise 62 Exercise 2 Exercise 22
Exercise 3 Exercise 23 Exercise 43 Exercise 63 Exercise 3 Exercise 23
Exercise 4 Exercise 24 Exercise 44 Exercise 64 Exercise 4 Exercise 24
Exercise 5 Exercise 25 Exercise 45 Exercise 65 Exercise 5 Exercise 25
Exercise 6 Exercise 26 Exercise 46 Exercise 66 Exercise 6 Exercise 26
Exercise 7 Exercise 27 Exercise 47 Exercise 67 Exercise 7 Exercise 27
Exercise 8 Exercise 28 Exercise 48 Exercise 68 Exercise 8 Exercise 28
Exercise 9 Exercise 29 Exercise 49 Exercise 69 Exercise 9
Exercise 10 Exercise 30 Exercise 50 Exercise 70 Exercise 10
Exercise 11 Exercise 31 Exercise 51 Exercise 71 Exercise 11
Exercise 12 Exercise 32 Exercise 52 Exercise 72 Exercise 12
Exercise 13 Exercise 33 Exercise 53 Exercise 73 Exercise 13
Exercise 14 Exercise 34 Exercise 54 Exercise 74 Exercise 14
Exercise 15 Exercise 35 Exercise 55 Exercise 75 Exercise 15
Exercise 16 Exercise 36 Exercise 56 Exercise 76 Exercise 16
Exercise 17 Exercise 37 Exercise 57 Exercise 77 Exercise 17
Exercise 18 Exercise 38 Exercise 58 Exercise 18
Exercise 19 Exercise 39 Exercise 59 Exercise 19
Exercise 20 Exercise 40 Exercise 60 Exercise 20
Section 2.1 Section 2.2 Section 2.3
Exercise 1 Exercise 1 Exercise 23 Exercise 45 Exercise 1 Exercise 23 Exercise 45
Exercise 2 Exercise 2 Exercise 24 Exercise 46 Exercise 2 Exercise 24 Exercise 46
Exercise 3 Exercise 3 Exercise 25 Exercise 47 Exercise 3 Exercise 25 Exercise 47
Exercise 4 Exercise 4 Exercise 26 Exercise 48 Exercise 4 Exercise 26 Exercise 48
Exercise 5 Exercise 5 Exercise 27 Exercise 49 Exercise 5 Exercise 27 Exercise 49
Exercise 6 Exercise 6 Exercise 28 Exercise 50 Exercise 6 Exercise 28 Exercise 50
Exercise 7 Exercise 7 Exercise 29 Exercise 51 Exercise 7 Exercise 29 Exercise 51
Exercise 8 Exercise 8 Exercise 30 Exercise 52 Exercise 8 Exercise 30 Exercise 52
Exercise 9 Exercise 9 Exercise 31 Exercise 53 Exercise 9 Exercise 31 Exercise 53
Exercise 10 Exercise 32 Exercise 54 Exercise 10 Exercise 32 Exercise 54
Exercise 11 Exercise 33 Exercise 55 Exercise 11 Exercise 33 Exercise 55
Exercise 12 Exercise 34 Exercise 12 Exercise 34 Exercise 56
Exercise 13 Exercise 35 Exercise 13 Exercise 35 Exercise 57
Exercise 14 Exercise 36 Exercise 14 Exercise 36 Exercise 58
Exercise 15 Exercise 37 Exercise 15 Exercise 37 Exercise 59
Exercise 16 Exercise 38 Exercise 16 Exercise 38 Exercise 60
Exercise 17 Exercise 39 Exercise 17 Exercise 39 Exercise 61
Exercise 18 Exercise 40 Exercise 18 Exercise 40 Exercise 62
Exercise 19 Exercise 41 Exercise 19 Exercise 41 Exercise 63
Exercise 20 Exercise 42 Exercise 20 Exercise 42 Exercise 64
Exercise 21 Exercise 43 Exercise 21 Exercise 43 Exercise 65
Exercise 22 Exercise 44 Exercise 22 Exercise 44 Exercise 66
Section 2.4 Section 2.5 Section 2.6
Exercise 1 Exercise 26 Exercise 1 Exercise 26 Exercise 51 Exercise 1 Exercise 26 Exercise 51 Exercise 76
Exercise 2 Exercise 27 Exercise 2 Exercise 27 Exercise 52 Exercise 2 Exercise 27 Exercise 52 Exercise 77
Exercise 3 Exercise 28 Exercise 3 Exercise 28 Exercise 53 Exercise 3 Exercise 28 Exercise 53 Exercise 78
Exercise 4 Exercise 29 Exercise 4 Exercise 29 Exercise 54 Exercise 4 Exercise 29 Exercise 54 Exercise 79
Exercise 5 Exercise 30 Exercise 5 Exercise 30 Exercise 55 Exercise 5 Exercise 30 Exercise 55 Exercise 80
Exercise 6 Exercise 31 Exercise 6 Exercise 31 Exercise 56 Exercise 6 Exercise 31 Exercise 56 Exercise 81
Exercise 7 Exercise 32 Exercise 7 Exercise 32 Exercise 57 Exercise 7 Exercise 32 Exercise 57 Exercise 82
Exercise 8 Exercise 33 Exercise 8 Exercise 33 Exercise 58 Exercise 8 Exercise 33 Exercise 58 Exercise 83
Exercise 9 Exercise 34 Exercise 9 Exercise 34 Exercise 59 Exercise 9 Exercise 34 Exercise 59 Exercise 84
Exercise 10 Exercise 35 Exercise 10 Exercise 35 Exercise 60 Exercise 10 Exercise 35 Exercise 60 Exercise 85
Exercise 11 Exercise 36 Exercise 11 Exercise 36 Exercise 61 Exercise 11 Exercise 36 Exercise 61 Exercise 86
Exercise 12 Exercise 37 Exercise 12 Exercise 37 Exercise 62 Exercise 12 Exercise 37 Exercise 62 Exercise 87
Exercise 13 Exercise 38 Exercise 13 Exercise 38 Exercise 63 Exercise 13 Exercise 38 Exercise 63 Exercise 88
Exercise 14 Exercise 39 Exercise 14 Exercise 39 Exercise 64 Exercise 14 Exercise 39 Exercise 64
Exercise 15 Exercise 40 Exercise 15 Exercise 40 Exercise 65 Exercise 15 Exercise 40 Exercise 65
Exercise 16 Exercise 41 Exercise 16 Exercise 41 Exercise 66 Exercise 16 Exercise 41 Exercise 66
Exercise 17 Exercise 42 Exercise 17 Exercise 42 Exercise 67 Exercise 17 Exercise 42 Exercise 67
Exercise 18 Exercise 43 Exercise 18 Exercise 43 Exercise 68 Exercise 18 Exercise 43 Exercise 68
Exercise 19 Exercise 44 Exercise 19 Exercise 44 Exercise 69 Exercise 19 Exercise 44 Exercise 69
Exercise 20 Exercise 20 Exercise 45 Exercise 70 Exercise 20 Exercise 45 Exercise 70
Exercise 21 Exercise 21 Exercise 46 Exercise 71 Exercise 21 Exercise 46 Exercise 71
Exercise 22 Exercise 22 Exercise 47 Exercise 72 Exercise 22 Exercise 47 Exercise 72
Exercise 23 Exercise 23 Exercise 48 Exercise 73 Exercise 23 Exercise 48 Exercise 73
Exercise 24 Exercise 24 Exercise 49 Exercise 24 Exercise 49 Exercise 74
Exercise 25 Exercise 25 Exercise 50 Exercise 25 Exercise 50 Exercise 75
Section 2.7 Section 2.8 Chapter 2 Review
Exercise 1 Exercise 24 Exercise 47 Exercise 1 Exercise 24 Exercise 47 Exercise 1 Exercise 24 Exercise 47
Exercise 2 Exercise 25 Exercise 48 Exercise 2 Exercise 25 Exercise 48 Exercise 2 Exercise 25 Exercise 48
Exercise 3 Exercise 26 Exercise 49 Exercise 3 Exercise 26 Exercise 49 Exercise 3 Exercise 26 Exercise 49
Exercise 4 Exercise 27 Exercise 50 Exercise 4 Exercise 27 Exercise 50 Exercise 4 Exercise 27 Exercise 50
Exercise 5 Exercise 28 Exercise 51 Exercise 5 Exercise 28 Exercise 51 Exercise 5 Exercise 28 Exercise 51
Exercise 6 Exercise 29 Exercise 52 Exercise 6 Exercise 29 Exercise 52 Exercise 6 Exercise 29 Exercise 52
Exercise 7 Exercise 30 Exercise 53 Exercise 7 Exercise 30 Exercise 53 Exercise 7 Exercise 30 Exercise 53
Exercise 8 Exercise 31 Exercise 54 Exercise 8 Exercise 31 Exercise 54 Exercise 8 Exercise 31 Exercise 54
Exercise 9 Exercise 32 Exercise 55 Exercise 9 Exercise 32 Exercise 55 Exercise 9 Exercise 32
Exercise 10 Exercise 33 Exercise 56 Exercise 10 Exercise 33 Exercise 56 Exercise 10 Exercise 33
Exercise 11 Exercise 34 Exercise 57 Exercise 11 Exercise 34 Exercise 57 Exercise 11 Exercise 34
Exercise 12 Exercise 35 Exercise 58 Exercise 12 Exercise 35 Exercise 58 Exercise 12 Exercise 35
Exercise 13 Exercise 36 Exercise 59 Exercise 13 Exercise 36 Exercise 59 Exercise 13 Exercise 36
Exercise 14 Exercise 37 Exercise 60 Exercise 14 Exercise 37 Exercise 60 Exercise 14 Exercise 37
Exercise 15 Exercise 38 Exercise 61 Exercise 15 Exercise 38 Exercise 61 Exercise 15 Exercise 38
Exercise 16 Exercise 39 Exercise 16 Exercise 39 Exercise 62 Exercise 16 Exercise 39
Exercise 17 Exercise 40 Exercise 17 Exercise 40 Exercise 63 Exercise 17 Exercise 40
Exercise 18 Exercise 41 Exercise 18 Exercise 41 Exercise 64 Exercise 18 Exercise 41
Exercise 19 Exercise 42 Exercise 19 Exercise 42 Exercise 65 Exercise 19 Exercise 42
Exercise 20 Exercise 43 Exercise 20 Exercise 43 Exercise 66 Exercise 20 Exercise 43
Exercise 21 Exercise 44 Exercise 21 Exercise 44 Exercise 67 Exercise 21 Exercise 44
Exercise 22 Exercise 22 Exercise 45 Exercise 22 Exercise 45
Exercise 23 Exercise 23 Exercise 46 Exercise 23 Exercise 46
Section 3.1 Section 3.2
Exercise 1 Exercise 23 Exercise 45 Exercise 67 Exercise 1 Exercise 23 Exercise 45
Exercise 2 Exercise 24 Exercise 46 Exercise 68 Exercise 2 Exercise 24 Exercise 46
Exercise 3 Exercise 25 Exercise 47 Exercise 69 Exercise 3 Exercise 25 Exercise 47
Exercise 4 Exercise 26 Exercise 48 Exercise 70 Exercise 4 Exercise 26 Exercise 48
Exercise 5 Exercise 27 Exercise 49 Exercise 71 Exercise 5 Exercise 27 Exercise 49
Exercise 6 Exercise 28 Exercise 50 Exercise 72 Exercise 6 Exercise 28 Exercise 50
Exercise 7 Exercise 29 Exercise 51 Exercise 73 Exercise 7 Exercise 29 Exercise 51
Exercise 8 Exercise 30 Exercise 52 Exercise 74 Exercise 8 Exercise 30 Exercise 52
Exercise 9 Exercise 31 Exercise 53 Exercise 75 Exercise 9 Exercise 31 Exercise 53
Exercise 10 Exercise 32 Exercise 54 Exercise 76 Exercise 10 Exercise 32 Exercise 54
Exercise 11 Exercise 33 Exercise 55 Exercise 77 Exercise 11 Exercise 33 Exercise 55
Exercise 12 Exercise 34 Exercise 56 Exercise 78 Exercise 12 Exercise 34 Exercise 56
Exercise 13 Exercise 35 Exercise 57 Exercise 79 Exercise 13 Exercise 35 Exercise 57
Exercise 14 Exercise 36 Exercise 58 Exercise 80 Exercise 14 Exercise 36 Exercise 58
Exercise 15 Exercise 37 Exercise 59 Exercise 81 Exercise 15 Exercise 37 Exercise 59
Exercise 16 Exercise 38 Exercise 60 Exercise 82 Exercise 16 Exercise 38 Exercise 60
Exercise 17 Exercise 39 Exercise 61 Exercise 83 Exercise 17 Exercise 39 Exercise 61
Exercise 18 Exercise 40 Exercise 62 Exercise 84 Exercise 18 Exercise 40 Exercise 62
Exercise 19 Exercise 41 Exercise 63 Exercise 85 Exercise 19 Exercise 41 Exercise 63
Exercise 20 Exercise 42 Exercise 64 Exercise 86 Exercise 20 Exercise 42 Exercise 64
Exercise 21 Exercise 43 Exercise 65 Exercise 21 Exercise 43
Exercise 22 Exercise 44 Exercise 66 Exercise 22 Exercise 44
Section 3.3 Section 3.4
Exercise 1 Exercise 21 Exercise 41 Exercise 1 Exercise 21 Exercise 41 Exercise 61 Exercise 81
Exercise 2 Exercise 22 Exercise 42 Exercise 2 Exercise 22 Exercise 42 Exercise 62 Exercise 82
Exercise 3 Exercise 23 Exercise 43 Exercise 3 Exercise 23 Exercise 43 Exercise 63 Exercise 83
Exercise 4 Exercise 24 Exercise 44 Exercise 4 Exercise 24 Exercise 44 Exercise 64 Exercise 84
Exercise 5 Exercise 25 Exercise 45 Exercise 5 Exercise 25 Exercise 45 Exercise 65 Exercise 85
Exercise 6 Exercise 26 Exercise 46 Exercise 6 Exercise 26 Exercise 46 Exercise 66 Exercise 86
Exercise 7 Exercise 27 Exercise 47 Exercise 7 Exercise 27 Exercise 47 Exercise 67 Exercise 87
Exercise 8 Exercise 28 Exercise 48 Exercise 8 Exercise 28 Exercise 48 Exercise 68 Exercise 88
Exercise 9 Exercise 29 Exercise 49 Exercise 9 Exercise 29 Exercise 49 Exercise 69 Exercise 89
Exercise 10 Exercise 30 Exercise 50 Exercise 10 Exercise 30 Exercise 50 Exercise 70 Exercise 90
Exercise 11 Exercise 31 Exercise 51 Exercise 11 Exercise 31 Exercise 51 Exercise 71 Exercise 91
Exercise 12 Exercise 32 Exercise 52 Exercise 12 Exercise 32 Exercise 52 Exercise 72 Exercise 92
Exercise 13 Exercise 33 Exercise 53 Exercise 13 Exercise 33 Exercise 53 Exercise 73 Exercise 93
Exercise 14 Exercise 34 Exercise 54 Exercise 14 Exercise 34 Exercise 54 Exercise 74 Exercise 94
Exercise 15 Exercise 35 Exercise 55 Exercise 15 Exercise 35 Exercise 55 Exercise 75 Exercise 95
Exercise 16 Exercise 36 Exercise 56 Exercise 16 Exercise 36 Exercise 56 Exercise 76 Exercise 96
Exercise 17 Exercise 37 Exercise 57 Exercise 17 Exercise 37 Exercise 57 Exercise 77 Exercise 97
Exercise 18 Exercise 38 Exercise 58 Exercise 18 Exercise 38 Exercise 58 Exercise 78 Exercise 98
Exercise 19 Exercise 39 Exercise 19 Exercise 39 Exercise 59 Exercise 79 Exercise 99
Exercise 20 Exercise 40 Exercise 20 Exercise 40 Exercise 60 Exercise 80 Exercise 100
Section 3.5 Section 3.6 Section 3.7
Exercise 1 Exercise 21 Exercise 41 Exercise 61 Exercise 1 Exercise 21 Exercise 41 Exercise 1 Exercise 21
Exercise 2 Exercise 22 Exercise 42 Exercise 62 Exercise 2 Exercise 22 Exercise 42 Exercise 2 Exercise 22
Exercise 3 Exercise 23 Exercise 43 Exercise 63 Exercise 3 Exercise 23 Exercise 43 Exercise 3 Exercise 23
Exercise 4 Exercise 24 Exercise 44 Exercise 64 Exercise 4 Exercise 24 Exercise 44 Exercise 4 Exercise 24
Exercise 5 Exercise 25 Exercise 45 Exercise 65 Exercise 5 Exercise 25 Exercise 45 Exercise 5 Exercise 25
Exercise 6 Exercise 26 Exercise 46 Exercise 66 Exercise 6 Exercise 26 Exercise 46 Exercise 6 Exercise 26
Exercise 7 Exercise 27 Exercise 47 Exercise 67 Exercise 7 Exercise 27 Exercise 47 Exercise 7 Exercise 27
Exercise 8 Exercise 28 Exercise 48 Exercise 68 Exercise 8 Exercise 28 Exercise 48 Exercise 8 Exercise 28
Exercise 9 Exercise 29 Exercise 49 Exercise 69 Exercise 9 Exercise 29 Exercise 49 Exercise 9 Exercise 29
Exercise 10 Exercise 30 Exercise 50 Exercise 70 Exercise 10 Exercise 30 Exercise 50 Exercise 10 Exercise 30
Exercise 11 Exercise 31 Exercise 51 Exercise 71 Exercise 11 Exercise 31 Exercise 51 Exercise 11 Exercise 31
Exercise 12 Exercise 32 Exercise 52 Exercise 72 Exercise 12 Exercise 32 Exercise 52 Exercise 12 Exercise 32
Exercise 13 Exercise 33 Exercise 53 Exercise 73 Exercise 13 Exercise 33 Exercise 53 Exercise 13 Exercise 33
Exercise 14 Exercise 34 Exercise 54 Exercise 74 Exercise 14 Exercise 34 Exercise 54 Exercise 14 Exercise 34
Exercise 15 Exercise 35 Exercise 55 Exercise 75 Exercise 15 Exercise 35 Exercise 55 Exercise 15 Exercise 35
Exercise 16 Exercise 36 Exercise 56 Exercise 76 Exercise 16 Exercise 36 Exercise 56 Exercise 16 Exercise 36
Exercise 17 Exercise 37 Exercise 57 Exercise 77 Exercise 17 Exercise 37 Exercise 17 Exercise 37
Exercise 18 Exercise 38 Exercise 58 Exercise 78 Exercise 18 Exercise 38 Exercise 18 Exercise 38
Exercise 19 Exercise 39 Exercise 59 Exercise 79 Exercise 19 Exercise 39 Exercise 19 Exercise 39
Exercise 20 Exercise 40 Exercise 60 Exercise 80 Exercise 20 Exercise 40 Exercise 20
Section 3.8 Section 3.9 Section 3.10 Section 3.11
Exercise 1 Exercise 1 Exercise 26 Exercise 1 Exercise 26 Exercise 1 Exercise 26 Exercise 51
Exercise 2 Exercise 2 Exercise 27 Exercise 2 Exercise 27 Exercise 2 Exercise 27 Exercise 52
Exercise 3 Exercise 3 Exercise 28 Exercise 3 Exercise 28 Exercise 3 Exercise 28 Exercise 53
Exercise 4 Exercise 4 Exercise 29 Exercise 4 Exercise 29 Exercise 4 Exercise 29 Exercise 54
Exercise 5 Exercise 5 Exercise 30 Exercise 5 Exercise 30 Exercise 5 Exercise 30 Exercise 55
Exercise 6 Exercise 6 Exercise 31 Exercise 6 Exercise 31 Exercise 6 Exercise 31 Exercise 56
Exercise 7 Exercise 7 Exercise 32 Exercise 7 Exercise 32 Exercise 7 Exercise 32 Exercise 57
Exercise 8 Exercise 8 Exercise 33 Exercise 8 Exercise 33 Exercise 8 Exercise 33 Exercise 58
Exercise 9 Exercise 9 Exercise 34 Exercise 9 Exercise 34 Exercise 9 Exercise 34 Exercise 59
Exercise 10 Exercise 10 Exercise 35 Exercise 10 Exercise 35 Exercise 10 Exercise 35
Exercise 11 Exercise 11 Exercise 36 Exercise 11 Exercise 36 Exercise 11 Exercise 36
Exercise 12 Exercise 12 Exercise 37 Exercise 12 Exercise 37 Exercise 12 Exercise 37
Exercise 13 Exercise 13 Exercise 38 Exercise 13 Exercise 38 Exercise 13 Exercise 38
Exercise 14 Exercise 14 Exercise 39 Exercise 14 Exercise 39 Exercise 14 Exercise 39
Exercise 15 Exercise 15 Exercise 40 Exercise 15 Exercise 40 Exercise 15 Exercise 40
Exercise 16 Exercise 16 Exercise 41 Exercise 16 Exercise 41 Exercise 16 Exercise 41
Exercise 17 Exercise 17 Exercise 42 Exercise 17 Exercise 42 Exercise 17 Exercise 42
Exercise 18 Exercise 18 Exercise 43 Exercise 18 Exercise 43 Exercise 18 Exercise 43
Exercise 19 Exercise 19 Exercise 44 Exercise 19 Exercise 44 Exercise 19 Exercise 44
Exercise 20 Exercise 20 Exercise 45 Exercise 20 Exercise 20 Exercise 45
Exercise 21 Exercise 21 Exercise 46 Exercise 21 Exercise 21 Exercise 46
Exercise 22 Exercise 22 Exercise 47 Exercise 22 Exercise 22 Exercise 47
Exercise 23 Exercise 48 Exercise 23 Exercise 23 Exercise 48
Exercise 24 Exercise 49 Exercise 24 Exercise 24 Exercise 49
Exercise 25 Exercise 50 Exercise 25 Exercise 25 Exercise 50
Chapter 3 Review
Exercise 1 Exercise 17 Exercise 33 Exercise 49 Exercise 65 Exercise 81 Exercise 97
Exercise 2 Exercise 18 Exercise 34 Exercise 50 Exercise 66 Exercise 82 Exercise 98
Exercise 3 Exercise 19 Exercise 35 Exercise 51 Exercise 67 Exercise 83 Exercise 99
Exercise 4 Exercise 20 Exercise 36 Exercise 52 Exercise 68 Exercise 84 Exercise 100
Exercise 5 Exercise 21 Exercise 37 Exercise 53 Exercise 69 Exercise 85 Exercise 101
Exercise 6 Exercise 22 Exercise 38 Exercise 54 Exercise 70 Exercise 86 Exercise 102
Exercise 7 Exercise 23 Exercise 39 Exercise 55 Exercise 71 Exercise 87 Exercise 103
Exercise 8 Exercise 24 Exercise 40 Exercise 56 Exercise 72 Exercise 88 Exercise 104
Exercise 9 Exercise 25 Exercise 41 Exercise 57 Exercise 73 Exercise 89 Exercise 105
Exercise 10 Exercise 26 Exercise 42 Exercise 58 Exercise 74 Exercise 90 Exercise 106
Exercise 11 Exercise 27 Exercise 43 Exercise 59 Exercise 75 Exercise 91 Exercise 107
Exercise 12 Exercise 28 Exercise 44 Exercise 60 Exercise 76 Exercise 92 Exercise 108
Exercise 13 Exercise 29 Exercise 45 Exercise 61 Exercise 77 Exercise 93 Exercise 109
Exercise 14 Exercise 30 Exercise 46 Exercise 62 Exercise 78 Exercise 94 Exercise 110
Exercise 15 Exercise 31 Exercise 47 Exercise 63 Exercise 79 Exercise 95 Exercise 111
Exercise 16 Exercise 32 Exercise 48 Exercise 64 Exercise 80 Exercise 96 Exercise 112
Section 4.1 Section 4.2
Exercise 1 Exercise 21 Exercise 41 Exercise 61 Exercise 1 Exercise 21
Exercise 2 Exercise 22 Exercise 42 Exercise 62 Exercise 2 Exercise 22
Exercise 3 Exercise 23 Exercise 43 Exercise 63 Exercise 3 Exercise 23
Exercise 4 Exercise 24 Exercise 44 Exercise 64 Exercise 4 Exercise 24
Exercise 5 Exercise 25 Exercise 45 Exercise 65 Exercise 5 Exercise 25
Exercise 6 Exercise 26 Exercise 46 Exercise 66 Exercise 6 Exercise 26
Exercise 7 Exercise 27 Exercise 47 Exercise 67 Exercise 7 Exercise 27
Exercise 8 Exercise 28 Exercise 48 Exercise 68 Exercise 8 Exercise 28
Exercise 9 Exercise 29 Exercise 49 Exercise 69 Exercise 9 Exercise 29
Exercise 10 Exercise 30 Exercise 50 Exercise 70 Exercise 10 Exercise 30
Exercise 11 Exercise 31 Exercise 51 Exercise 71 Exercise 11 Exercise 31
Exercise 12 Exercise 32 Exercise 52 Exercise 72 Exercise 12 Exercise 32
Exercise 13 Exercise 33 Exercise 53 Exercise 73 Exercise 13 Exercise 33
Exercise 14 Exercise 34 Exercise 54 Exercise 74 Exercise 14 Exercise 34
Exercise 15 Exercise 35 Exercise 55 Exercise 75 Exercise 15 Exercise 35
Exercise 16 Exercise 36 Exercise 56 Exercise 76 Exercise 16 Exercise 36
Exercise 17 Exercise 37 Exercise 57 Exercise 77 Exercise 17 Exercise 37
Exercise 18 Exercise 38 Exercise 58 Exercise 78 Exercise 18 Exercise 38
Exercise 19 Exercise 39 Exercise 59 Exercise 79 Exercise 19
Exercise 20 Exercise 40 Exercise 60 Exercise 80 Exercise 20
Section 4.3 Section 4.4
Exercise 1 Exercise 25 Exercise 49 Exercise 73 Exercise 1 Exercise 25 Exercise 49 Exercise 73
Exercise 2 Exercise 26 Exercise 50 Exercise 74 Exercise 2 Exercise 26 Exercise 50 Exercise 74
Exercise 3 Exercise 27 Exercise 51 Exercise 75 Exercise 3 Exercise 27 Exercise 51 Exercise 75
Exercise 4 Exercise 28 Exercise 52 Exercise 76 Exercise 4 Exercise 28 Exercise 52 Exercise 76
Exercise 5 Exercise 29 Exercise 53 Exercise 77 Exercise 5 Exercise 29 Exercise 53 Exercise 77
Exercise 6 Exercise 30 Exercise 54 Exercise 78 Exercise 6 Exercise 30 Exercise 54 Exercise 78
Exercise 7 Exercise 31 Exercise 55 Exercise 79 Exercise 7 Exercise 31 Exercise 55 Exercise 79
Exercise 8 Exercise 32 Exercise 56 Exercise 80 Exercise 8 Exercise 32 Exercise 56 Exercise 80
Exercise 9 Exercise 33 Exercise 57 Exercise 81 Exercise 9 Exercise 33 Exercise 57 Exercise 81
Exercise 10 Exercise 34 Exercise 58 Exercise 82 Exercise 10 Exercise 34 Exercise 58 Exercise 82
Exercise 11 Exercise 35 Exercise 59 Exercise 83 Exercise 11 Exercise 35 Exercise 59 Exercise 83
Exercise 12 Exercise 36 Exercise 60 Exercise 84 Exercise 12 Exercise 36 Exercise 60 Exercise 84
Exercise 13 Exercise 37 Exercise 61 Exercise 85 Exercise 13 Exercise 37 Exercise 61 Exercise 85
Exercise 14 Exercise 38 Exercise 62 Exercise 86 Exercise 14 Exercise 38 Exercise 62 Exercise 86
Exercise 15 Exercise 39 Exercise 63 Exercise 87 Exercise 15 Exercise 39 Exercise 63 Exercise 87
Exercise 16 Exercise 40 Exercise 64 Exercise 88 Exercise 16 Exercise 40 Exercise 64 Exercise 88
Exercise 17 Exercise 41 Exercise 65 Exercise 89 Exercise 17 Exercise 41 Exercise 65 Exercise 89
Exercise 18 Exercise 42 Exercise 66 Exercise 90 Exercise 18 Exercise 42 Exercise 66 Exercise 90
Exercise 19 Exercise 43 Exercise 67 Exercise 91 Exercise 19 Exercise 43 Exercise 67 Exercise 91
Exercise 20 Exercise 44 Exercise 68 Exercise 92 Exercise 20 Exercise 44 Exercise 68 Exercise 92
Exercise 21 Exercise 45 Exercise 69 Exercise 93 Exercise 21 Exercise 45 Exercise 69
Exercise 22 Exercise 46 Exercise 70 Exercise 22 Exercise 46 Exercise 70
Exercise 23 Exercise 47 Exercise 71 Exercise 23 Exercise 47 Exercise 71
Exercise 24 Exercise 48 Exercise 72 Exercise 24 Exercise 48 Exercise 72
Section 4.5 Section 4.6 Section 4.7
Exercise 1 Exercise 27 Exercise 53 Exercise 1 Exercise 27 Exercise 1 Exercise 27 Exercise 53 Exercise 79
Exercise 2 Exercise 28 Exercise 54 Exercise 2 Exercise 28 Exercise 2 Exercise 28 Exercise 54 Exercise 80
Exercise 3 Exercise 29 Exercise 55 Exercise 3 Exercise 29 Exercise 3 Exercise 29 Exercise 55 Exercise 81
Exercise 4 Exercise 30 Exercise 56 Exercise 4 Exercise 30 Exercise 4 Exercise 30 Exercise 56 Exercise 82
Exercise 5 Exercise 31 Exercise 57 Exercise 5 Exercise 31 Exercise 5 Exercise 31 Exercise 57
Exercise 6 Exercise 32 Exercise 58 Exercise 6 Exercise 32 Exercise 6 Exercise 32 Exercise 58
Exercise 7 Exercise 33 Exercise 59 Exercise 7 Exercise 33 Exercise 7 Exercise 33 Exercise 59
Exercise 8 Exercise 34 Exercise 60 Exercise 8 Exercise 34 Exercise 8 Exercise 34 Exercise 60
Exercise 9 Exercise 35 Exercise 61 Exercise 9 Exercise 35 Exercise 9 Exercise 35 Exercise 61
Exercise 10 Exercise 36 Exercise 62 Exercise 10 Exercise 36 Exercise 10 Exercise 36 Exercise 62
Exercise 11 Exercise 37 Exercise 63 Exercise 11 Exercise 37 Exercise 11 Exercise 37 Exercise 63
Exercise 12 Exercise 38 Exercise 64 Exercise 12 Exercise 38 Exercise 12 Exercise 38 Exercise 64
Exercise 13 Exercise 39 Exercise 65 Exercise 13 Exercise 39 Exercise 13 Exercise 39 Exercise 65
Exercise 14 Exercise 40 Exercise 66 Exercise 14 Exercise 40 Exercise 14 Exercise 40 Exercise 66
Exercise 15 Exercise 41 Exercise 67 Exercise 15 Exercise 15 Exercise 41 Exercise 67
Exercise 16 Exercise 42 Exercise 68 Exercise 16 Exercise 16 Exercise 42 Exercise 68
Exercise 17 Exercise 43 Exercise 69 Exercise 17 Exercise 17 Exercise 43 Exercise 69
Exercise 18 Exercise 44 Exercise 70 Exercise 18 Exercise 18 Exercise 44 Exercise 70
Exercise 19 Exercise 45 Exercise 71 Exercise 19 Exercise 19 Exercise 45 Exercise 71
Exercise 20 Exercise 46 Exercise 72 Exercise 20 Exercise 20 Exercise 46 Exercise 72
Exercise 21 Exercise 47 Exercise 73 Exercise 21 Exercise 21 Exercise 47 Exercise 73
Exercise 22 Exercise 48 Exercise 74 Exercise 22 Exercise 22 Exercise 48 Exercise 74
Exercise 23 Exercise 49 Exercise 75 Exercise 23 Exercise 23 Exercise 49 Exercise 75
Exercise 24 Exercise 50 Exercise 76 Exercise 24 Exercise 24 Exercise 50 Exercise 76
Exercise 25 Exercise 51 Exercise 25 Exercise 25 Exercise 51 Exercise 77
Exercise 26 Exercise 52 Exercise 26 Exercise 26 Exercise 52 Exercise 78
Section 4.8 Section 4.9
Exercise 1 Exercise 22 Exercise 1 Exercise 22 Exercise 43 Exercise 64
Exercise 2 Exercise 23 Exercise 2 Exercise 23 Exercise 44 Exercise 65
Exercise 3 Exercise 24 Exercise 3 Exercise 24 Exercise 45 Exercise 66
Exercise 4 Exercise 25 Exercise 4 Exercise 25 Exercise 46 Exercise 67
Exercise 5 Exercise 26 Exercise 5 Exercise 26 Exercise 47 Exercise 68
Exercise 6 Exercise 27 Exercise 6 Exercise 27 Exercise 48 Exercise 69
Exercise 7 Exercise 28 Exercise 7 Exercise 28 Exercise 49 Exercise 70
Exercise 8 Exercise 29 Exercise 8 Exercise 29 Exercise 50 Exercise 71
Exercise 9 Exercise 30 Exercise 9 Exercise 30 Exercise 51 Exercise 72
Exercise 10 Exercise 31 Exercise 10 Exercise 31 Exercise 52 Exercise 73
Exercise 11 Exercise 32 Exercise 11 Exercise 32 Exercise 53 Exercise 74
Exercise 12 Exercise 33 Exercise 12 Exercise 33 Exercise 54 Exercise 75
Exercise 13 Exercise 34 Exercise 13 Exercise 34 Exercise 55 Exercise 76
Exercise 14 Exercise 35 Exercise 14 Exercise 35 Exercise 56 Exercise 77
Exercise 15 Exercise 36 Exercise 15 Exercise 36 Exercise 57 Exercise 78
Exercise 16 Exercise 37 Exercise 16 Exercise 37 Exercise 58 Exercise 79
Exercise 17 Exercise 38 Exercise 17 Exercise 38 Exercise 59
Exercise 18 Exercise 39 Exercise 18 Exercise 39 Exercise 60
Exercise 19 Exercise 40 Exercise 19 Exercise 40 Exercise 61
Exercise 20 Exercise 41 Exercise 20 Exercise 41 Exercise 62
Exercise 21 Exercise 42 Exercise 21 Exercise 42 Exercise 63
Chapter 4 Review Section 5.1 Section 5.2
Exercise 1 Exercise 26 Exercise 51 Exercise 76 Exercise 1 Exercise 26 Exercise 1 Exercise 26 Exercise 51
Exercise 2 Exercise 27 Exercise 52 Exercise 77 Exercise 2 Exercise 27 Exercise 2 Exercise 27 Exercise 52
Exercise 3 Exercise 28 Exercise 53 Exercise 78 Exercise 3 Exercise 28 Exercise 3 Exercise 28 Exercise 53
Exercise 4 Exercise 29 Exercise 54 Exercise 79 Exercise 4 Exercise 29 Exercise 4 Exercise 29 Exercise 54
Exercise 5 Exercise 30 Exercise 55 Exercise 80 Exercise 5 Exercise 30 Exercise 5 Exercise 30 Exercise 55
Exercise 6 Exercise 31 Exercise 56 Exercise 81 Exercise 6 Exercise 31 Exercise 6 Exercise 31 Exercise 56
Exercise 7 Exercise 32 Exercise 57 Exercise 82 Exercise 7 Exercise 32 Exercise 7 Exercise 32 Exercise 57
Exercise 8 Exercise 33 Exercise 58 Exercise 83 Exercise 8 Exercise 8 Exercise 33 Exercise 58
Exercise 9 Exercise 34 Exercise 59 Exercise 84 Exercise 9 Exercise 9 Exercise 34 Exercise 59
Exercise 10 Exercise 35 Exercise 60 Exercise 85 Exercise 10 Exercise 10 Exercise 35 Exercise 60
Exercise 11 Exercise 36 Exercise 61 Exercise 86 Exercise 11 Exercise 11 Exercise 36 Exercise 61
Exercise 12 Exercise 37 Exercise 62 Exercise 12 Exercise 12 Exercise 37 Exercise 62
Exercise 13 Exercise 38 Exercise 63 Exercise 13 Exercise 13 Exercise 38 Exercise 63
Exercise 14 Exercise 39 Exercise 64 Exercise 14 Exercise 14 Exercise 39 Exercise 64
Exercise 15 Exercise 40 Exercise 65 Exercise 15 Exercise 15 Exercise 40 Exercise 65
Exercise 16 Exercise 41 Exercise 66 Exercise 16 Exercise 16 Exercise 41 Exercise 66
Exercise 17 Exercise 42 Exercise 67 Exercise 17 Exercise 17 Exercise 42 Exercise 67
Exercise 18 Exercise 43 Exercise 68 Exercise 18 Exercise 18 Exercise 43 Exercise 68
Exercise 19 Exercise 44 Exercise 69 Exercise 19 Exercise 19 Exercise 44 Exercise 69
Exercise 20 Exercise 45 Exercise 70 Exercise 20 Exercise 20 Exercise 45 Exercise 70
Exercise 21 Exercise 46 Exercise 71 Exercise 21 Exercise 21 Exercise 46 Exercise 71
Exercise 22 Exercise 47 Exercise 72 Exercise 22 Exercise 22 Exercise 47 Exercise 72
Exercise 23 Exercise 48 Exercise 73 Exercise 23 Exercise 23 Exercise 48 Exercise 73
Exercise 24 Exercise 49 Exercise 74 Exercise 24 Exercise 24 Exercise 49 Exercise 74
Exercise 25 Exercise 50 Exercise 75 Exercise 25 Exercise 25 Exercise 50 Exercise 75
Section 5.3 Section 5.4
Exercise 1 Exercise 23 Exercise 45 Exercise 67 Exercise 1 Exercise 23 Exercise 45 Exercise 67
Exercise 2 Exercise 24 Exercise 46 Exercise 68 Exercise 2 Exercise 24 Exercise 46 Exercise 68
Exercise 3 Exercise 25 Exercise 47 Exercise 69 Exercise 3 Exercise 25 Exercise 47 Exercise 69
Exercise 4 Exercise 26 Exercise 48 Exercise 70 Exercise 4 Exercise 26 Exercise 48 Exercise 70
Exercise 5 Exercise 27 Exercise 49 Exercise 71 Exercise 5 Exercise 27 Exercise 49 Exercise 71
Exercise 6 Exercise 28 Exercise 50 Exercise 72 Exercise 6 Exercise 28 Exercise 50 Exercise 72
Exercise 7 Exercise 29 Exercise 51 Exercise 73 Exercise 7 Exercise 29 Exercise 51 Exercise 73
Exercise 8 Exercise 30 Exercise 52 Exercise 74 Exercise 8 Exercise 30 Exercise 52 Exercise 74
Exercise 9 Exercise 31 Exercise 53 Exercise 75 Exercise 9 Exercise 31 Exercise 53
Exercise 10 Exercise 32 Exercise 54 Exercise 76 Exercise 10 Exercise 32 Exercise 54
Exercise 11 Exercise 33 Exercise 55 Exercise 77 Exercise 11 Exercise 33 Exercise 55
Exercise 12 Exercise 34 Exercise 56 Exercise 78 Exercise 12 Exercise 34 Exercise 56
Exercise 13 Exercise 35 Exercise 57 Exercise 79 Exercise 13 Exercise 35 Exercise 57
Exercise 14 Exercise 36 Exercise 58 Exercise 80 Exercise 14 Exercise 36 Exercise 58
Exercise 15 Exercise 37 Exercise 59 Exercise 81 Exercise 15 Exercise 37 Exercise 59
Exercise 16 Exercise 38 Exercise 60 Exercise 82 Exercise 16 Exercise 38 Exercise 60
Exercise 17 Exercise 39 Exercise 61 Exercise 83 Exercise 17 Exercise 39 Exercise 61
Exercise 18 Exercise 40 Exercise 62 Exercise 84 Exercise 18 Exercise 40 Exercise 62
Exercise 19 Exercise 41 Exercise 63 Exercise 85 Exercise 19 Exercise 41 Exercise 63
Exercise 20 Exercise 42 Exercise 64 Exercise 86 Exercise 20 Exercise 42 Exercise 64
Exercise 21 Exercise 43 Exercise 65 Exercise 21 Exercise 43 Exercise 65
Exercise 22 Exercise 44 Exercise 66 Exercise 22 Exercise 44 Exercise 66
Section 5.5 Chapter 5 Review
Exercise 1 Exercise 21 Exercise 41 Exercise 61 Exercise 81 Exercise 1 Exercise 21 Exercise 41 Exercise 61
Exercise 2 Exercise 22 Exercise 42 Exercise 62 Exercise 82 Exercise 2 Exercise 22 Exercise 42 Exercise 62
Exercise 3 Exercise 23 Exercise 43 Exercise 63 Exercise 83 Exercise 3 Exercise 23 Exercise 43 Exercise 63
Exercise 4 Exercise 24 Exercise 44 Exercise 64 Exercise 84 Exercise 4 Exercise 24 Exercise 44 Exercise 64
Exercise 5 Exercise 25 Exercise 45 Exercise 65 Exercise 85 Exercise 5 Exercise 25 Exercise 45 Exercise 65
Exercise 6 Exercise 26 Exercise 46 Exercise 66 Exercise 86 Exercise 6 Exercise 26 Exercise 46 Exercise 66
Exercise 7 Exercise 27 Exercise 47 Exercise 67 Exercise 87 Exercise 7 Exercise 27 Exercise 47 Exercise 67
Exercise 8 Exercise 28 Exercise 48 Exercise 68 Exercise 88 Exercise 8 Exercise 28 Exercise 48 Exercise 68
Exercise 9 Exercise 29 Exercise 49 Exercise 69 Exercise 89 Exercise 9 Exercise 29 Exercise 49 Exercise 69
Exercise 10 Exercise 30 Exercise 50 Exercise 70 Exercise 90 Exercise 10 Exercise 30 Exercise 50 Exercise 70
Exercise 11 Exercise 31 Exercise 51 Exercise 71 Exercise 91 Exercise 11 Exercise 31 Exercise 51 Exercise 71
Exercise 12 Exercise 32 Exercise 52 Exercise 72 Exercise 92 Exercise 12 Exercise 32 Exercise 52 Exercise 72
Exercise 13 Exercise 33 Exercise 53 Exercise 73 Exercise 93 Exercise 13 Exercise 33 Exercise 53 Exercise 73
Exercise 14 Exercise 34 Exercise 54 Exercise 74 Exercise 94 Exercise 14 Exercise 34 Exercise 54
Exercise 15 Exercise 35 Exercise 55 Exercise 75 Exercise 15 Exercise 35 Exercise 55
Exercise 16 Exercise 36 Exercise 56 Exercise 76 Exercise 16 Exercise 36 Exercise 56
Exercise 17 Exercise 37 Exercise 57 Exercise 77 Exercise 17 Exercise 37 Exercise 57
Exercise 18 Exercise 38 Exercise 58 Exercise 78 Exercise 18 Exercise 38 Exercise 58
Exercise 19 Exercise 39 Exercise 59 Exercise 79 Exercise 19 Exercise 39 Exercise 59
Exercise 20 Exercise 40 Exercise 60 Exercise 80 Exercise 20 Exercise 40 Exercise 60
Problems Plus
Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5
Exercise 1 Exercise 1 Exercise 1 Exercise 21 Exercise 1 Exercise 21 Exercise 1
Exercise 2 Exercise 2 Exercise 2 Exercise 22 Exercise 2 Exercise 22 Exercise 2
Exercise 3 Exercise 3 Exercise 3 Exercise 23 Exercise 3 Exercise 23 Exercise 3
Exercise 4 Exercise 4 Exercise 4 Exercise 24 Exercise 4 Exercise 24 Exercise 4
Exercise 5 Exercise 5 Exercise 5 Exercise 25 Exercise 5 Exercise 25 Exercise 5
Exercise 6 Exercise 6 Exercise 6 Exercise 26 Exercise 6 Exercise 26 Exercise 6
Exercise 7 Exercise 7 Exercise 7 Exercise 27 Exercise 7 Exercise 7
Exercise 8 Exercise 8 Exercise 8 Exercise 28 Exercise 8 Exercise 8
Exercise 9 Exercise 9 Exercise 9 Exercise 29 Exercise 9 Exercise 9
Exercise 10 Exercise 10 Exercise 10 Exercise 30 Exercise 10 Exercise 10
Exercise 11 Exercise 11 Exercise 11 Exercise 31 Exercise 11 Exercise 11
Exercise 12 Exercise 12 Exercise 12 Exercise 32 Exercise 12 Exercise 12
Exercise 13 Exercise 13 Exercise 13 Exercise 33 Exercise 13 Exercise 13
Exercise 14 Exercise 14 Exercise 14 Exercise 34 Exercise 14 Exercise 14
Exercise 15 Exercise 15 Exercise 35 Exercise 15 Exercise 15
Exercise 16 Exercise 16 Exercise 16 Exercise 16
Exercise 17 Exercise 17 Exercise 17 Exercise 17
Exercise 18 Exercise 18 Exercise 18 Exercise 18
Exercise 19 Exercise 19 Exercise 19 Exercise 19
Exercise 20 Exercise 20 Exercise 20 Exercise 20