83.47 Book Solved Excercises. Chapter VI. Homogeneous linear equations with variable coefficients

83.47.1 problem Ex 1 page 79
83.47.2 problem Ex 2 page 80
83.47.3 problem Ex 3 page 80
83.47.4 problem Ex 4 page 82
83.47.5 problem Ex 5 page 82
83.47.6 problem Ex 6 page 86
83.47.7 problem Ex 7 page 87
83.47.8 problem Ex 8 page 87
83.47.9 problem Ex 9 page 89
83.47.10 problem Ex 10 page 89
83.47.11 problem Ex 11 page 90
83.47.12 problem Ex 12 page 90
83.47.13 problem Ex 13 page 91
83.47.14 problem Ex 14 page 91
83.47.15 problem Ex 15 page 92