73.16 Chapter 24. Variation of parameters. Additional exercises page 444

73.16.1 problem 24.1 (a)
73.16.2 problem 24.1 (b)
73.16.3 problem 24.1 (c)
73.16.4 problem 24.1 (d)
73.16.5 problem 24.1 (e)
73.16.6 problem 24.1 (f)
73.16.7 problem 24.1 (g)
73.16.8 problem 24.1 (h)
73.16.9 problem 24.1 (i)
73.16.10 problem 24.1 (j)
73.16.11 problem 24.1 (k)
73.16.12 problem 24.1 (L)
73.16.13 problem 24.1 (m)
73.16.14 problem 24.1 (n)
73.16.15 problem 24.2 (a)
73.16.16 problem 24.2 (b)
73.16.17 problem 24.3 (a)
73.16.18 problem 24.3 (b)
73.16.19 problem 24.4 (a)
73.16.20 problem 24.4 (b)
73.16.21 problem 24.4 (c)
73.16.22 problem 24.4 (d)