67.12 Chapter 19. Arbitrary Homogeneous linear equations with constant coefficients. Additional exercises page 369

67.12.1 problem 19.1 (a)
67.12.2 problem 19.1 (b)
67.12.3 problem 19.1 (c)
67.12.4 problem 19.1 (d)
67.12.5 problem 19.1 (e)
67.12.6 problem 19.1 (f)
67.12.7 problem 19.2 (a)
67.12.8 problem 19.2 (b)
67.12.9 problem 19.2 (c)
67.12.10 problem 19.2 (d)
67.12.11 problem 19.2 (e)
67.12.12 problem 19.2 (f)
67.12.13 problem 19.3 (a)
67.12.14 problem 19.3 (b)
67.12.15 problem 19.3 (c)
67.12.16 problem 19.3 (d)
67.12.17 problem 19.4 (a)
67.12.18 problem 19.4 (b)
67.12.19 problem 19.4 (c)
67.12.20 problem 19.4 (d)
67.12.21 problem 19.4 (e)
67.12.22 problem 19.4 (f)
67.12.23 problem 19.4 (g)
67.12.24 problem 19.4 (h)
67.12.25 problem 19.4 (i)
67.12.26 problem 19.4 (j)