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# Solutions to Linear Algebra and its Applications 6e by Lay

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Chapter 1: Linear Equations in Linear Algebra
Section 1.1 Section 1.2
Exercise 1 Exercise 8 Exercise 15 Exercise 22 Exercise 29 Exercise 1 Exercise 8 Exercise 15 Exercise 22 Exercise 29
Exercise 2 Exercise 9 Exercise 16 Exercise 23 Exercise 30 Exercise 2 Exercise 9 Exercise 16 Exercise 23 Exercise 30
Exercise 3 Exercise 10 Exercise 17 Exercise 24 Exercise 31 Exercise 3 Exercise 10 Exercise 17 Exercise 24 Exercise 31
Exercise 4 Exercise 11 Exercise 18 Exercise 25 Exercise 32 Exercise 4 Exercise 11 Exercise 18 Exercise 25 Exercise 32
Exercise 5 Exercise 12 Exercise 19 Exercise 26 Exercise 33 Exercise 5 Exercise 12 Exercise 19 Exercise 26 Exercise 33
Exercise 6 Exercise 13 Exercise 20 Exercise 27 Exercise 34 Exercise 6 Exercise 13 Exercise 20 Exercise 27 Exercise 34
Exercise 7 Exercise 14 Exercise 21 Exercise 28 Exercise 7 Exercise 14 Exercise 21 Exercise 28

Chapter 1: Linear Equations in Linear Algebra (cont'd)
Section 1.3 Section 1.4
Exercise 1 Exercise 10 Exercise 19 Exercise 28 Exercise 1 Exercise 10 Exercise 19 Exercise 28 Exercise 37
Exercise 2 Exercise 11 Exercise 20 Exercise 29 Exercise 2 Exercise 11 Exercise 20 Exercise 29 Exercise 38
Exercise 3 Exercise 12 Exercise 21 Exercise 30 Exercise 3 Exercise 12 Exercise 21 Exercise 30 Exercise 39
Exercise 4 Exercise 13 Exercise 22 Exercise 31 Exercise 4 Exercise 13 Exercise 22 Exercise 31 Exercise 40
Exercise 4 Exercise 13 Exercise 22 Exercise 31 Exercise 4 Exercise 13 Exercise 22 Exercise 31 Exercise 40
Exercise 5 Exercise 14 Exercise 23 Exercise 32 Exercise 5 Exercise 14 Exercise 23 Exercise 32 Exercise 41
Exercise 6 Exercise 15 Exercise 24 Exercise 33 Exercise 6 Exercise 15 Exercise 24 Exercise 33 Exercise 42
Exercise 7 Exercise 16 Exercise 25 Exercise 34 Exercise 7 Exercise 16 Exercise 25 Exercise 34
Exercise 8 Exercise 17 Exercise 26 Exercise 8 Exercise 17 Exercise 26 Exercise 35
Exercise 9 Exercise 18 Exercise 27 Exercise 9 Exercise 18 Exercise 27 Exercise 36

Chapter 1: Linear Equations in Linear Algebra (cont'd 2)
Section 1.5 Section 1.6 Section 1.7
Exercise 1 Exercise 12 Exercise 23 Exercise 34 Exercise 1 Exercise 12 Exercise 1 Exercise 12 Exercise 23 Exercise 34
Exercise 2 Exercise 13 Exercise 24 Exercise 35 Exercise 2 Exercise 13 Exercise 2 Exercise 13 Exercise 24 Exercise 35
Exercise 3 Exercise 14 Exercise 25 Exercise 36 Exercise 3 Exercise 14 Exercise 3 Exercise 14 Exercise 25 Exercise 36
Exercise 4 Exercise 15 Exercise 26 Exercise 37 Exercise 4 Exercise 4 Exercise 15 Exercise 26 Exercise 37
Exercise 5 Exercise 16 Exercise 27 Exercise 38 Exercise 5 Exercise 5 Exercise 16 Exercise 27 Exercise 38
Exercise 6 Exercise 17 Exercise 28 Exercise 39 Exercise 6 Exercise 6 Exercise 17 Exercise 28 Exercise 39
Exercise 7 Exercise 18 Exercise 29 Exercise 40 Exercise 7 Exercise 7 Exercise 18 Exercise 29 Exercise 40
Exercise 8 Exercise 19 Exercise 30 Exercise 8 Exercise 8 Exercise 19 Exercise 30 Exercise 41
Exercise 9 Exercise 20 Exercise 31 Exercise 9 Exercise 9 Exercise 20 Exercise 31 Exercise 42
Exercise 10 Exercise 21 Exercise 32 Exercise 10 Exercise 10 Exercise 21 Exercise 32 Exercise 43
Exercise 11 Exercise 22 Exercise 33 Exercise 11 Exercise 11 Exercise 22 Exercise 33 Exercise 44

Chapter 1: Linear Equations in Linear Algebra (cont'd 3)
Section 1.8 Section 1.9
Exercise 1 Exercise 9 Exercise 17 Exercise 25 Exercise 33 Exercise 1 Exercise 9 Exercise 17 Exercise 25 Exercise 33
Exercise 2 Exercise 10 Exercise 18 Exercise 26 Exercise 34 Exercise 2 Exercise 10 Exercise 18 Exercise 26 Exercise 34
Exercise 3 Exercise 11 Exercise 19 Exercise 27 Exercise 35 Exercise 3 Exercise 11 Exercise 19 Exercise 27 Exercise 35
Exercise 4 Exercise 12 Exercise 20 Exercise 28 Exercise 36 Exercise 4 Exercise 12 Exercise 20 Exercise 28 Exercise 36
Exercise 5 Exercise 13 Exercise 21 Exercise 29 Exercise 37 Exercise 5 Exercise 13 Exercise 21 Exercise 29 Exercise 37
Exercise 6 Exercise 14 Exercise 22 Exercise 30 Exercise 38 Exercise 6 Exercise 14 Exercise 22 Exercise 30 Exercise 38
Exercise 7 Exercise 15 Exercise 23 Exercise 31 Exercise 39 Exercise 7 Exercise 15 Exercise 23 Exercise 31 Exercise 39
Exercise 8 Exercise 16 Exercise 24 Exercise 32 Exercise 40 Exercise 8 Exercise 16 Exercise 24 Exercise 32 Exercise 40

Chapter 1: Linear Equations in Linear Algebra (cont'd 4)
Section 1.10 Supp. Exercises
Exercise 1 Exercise 6 Exercise 11 Exercise 1 Exercise 6 Exercise 11 Exercise 16 Exercise 21
Exercise 2 Exercise 7 Exercise 12 Exercise 2 Exercise 7 Exercise 12 Exercise 17 Exercise 22
Exercise 3 Exercise 8 Exercise 13 Exercise 3 Exercise 8 Exercise 13 Exercise 18 Exercise 23
Exercise 4 Exercise 9 Exercise 14 Exercise 4 Exercise 9 Exercise 14 Exercise 19 Exercise 24
Exercise 5 Exercise 10 Exercise 5 Exercise 10 Exercise 15 Exercise 20 Exercise 25