1.1 problem 3.5
  1.2 problem 3.6 (a)
  1.3 problem 3.6 (b)
  1.4 problem 3.6 (c)
  1.5 problem 3.6 (d)
  1.6 problem 3.24 (a)
  1.7 problem 3.24 (b)
  1.8 problem 3.24 (c)
  1.9 problem 3.24 (d)
  1.10 problem 3.24 (e)
  1.11 problem 3.24 (f)
  1.12 problem 3.24 (g)
  1.13 problem 3.24 (h)
  1.14 problem 3.24 (i)
  1.15 problem 3.25 v=1/2
  1.16 problem 3.25 v=3/2
  1.17 problem 3.25 v=5/2
  1.18 problem 3.26
  1.19 problem 3.48 (a)
  1.20 problem 3.48 (b)
  1.21 problem 3.48 (c)
  1.22 problem 3.48 (d)
  1.23 problem 3.50