1.1 problem 2.2 (a)
1.2 problem 2.2 (b)
1.3 problem 2.2 (c)
1.4 problem 2.2 (d)
1.5 problem 2.2 (e)
1.6 problem 2.2 (f)
1.7 problem 2.2 (g)
1.8 problem 2.2 (h)
1.9 problem 2.2 (i)
1.10 problem 2.2 (j)
1.11 problem 2.3 (a)
1.12 problem 2.3 (b)
1.13 problem 2.3 (c)
1.14 problem 2.3 (d)
1.15 problem 2.3 (e)
1.16 problem 2.3 (f)
1.17 problem 2.3 (g)
1.18 problem 2.3 (h)
1.19 problem 2.3 (i)
1.20 problem 2.3 (j)
1.21 problem 2.3 (k)
1.22 problem 2.3 (L)
1.23 problem 2.4 (a)
1.24 problem 2.4 (b)
1.25 problem 2.4 (c)
1.26 problem 2.4 (d)
1.27 problem 2.4 (e)
1.28 problem 2.4 (f)
1.29 problem 2.4 (g)
1.30 problem 2.5 (a)
1.31 problem 2.5 (b i)
1.32 problem 2.5 (b ii)
1.33 problem 2.6 (a)
1.34 problem 2.6 (b i)
1.35 problem 2.6 (b ii)
1.36 problem 2.6 (b iii)
1.37 problem 2.7 a
1.38 problem 2.7 b
1.39 problem 2.7 c
1.40 problem 2.7 d
1.41 problem 2.7 e
1.42 problem 2.7 f
1.43 problem 2.9 a
1.44 problem 2.9 b
1.45 problem 2.9 c