5.1 problem 1(a)
5.2 problem 1(b)
5.3 problem 1(c)
5.4 problem 1(d)
5.5 problem 1(e)
5.6 problem 1(f)
5.7 problem 2(a)
5.8 problem 2(b)
5.9 problem 2(c)
5.10 problem 2(d)
5.11 problem 2(e)
5.12 problem 2(f)
5.13 problem 3(a)
5.14 problem 3(b)
5.15 problem 3(c)
5.16 problem 3(d)
5.17 problem 3(e)
5.18 problem 3(f)
5.19 problem 4
5.20 problem 5
5.21 problem 6
5.22 problem 7
5.23 problem 8
5.24 problem 9
5.25 problem 12
5.26 problem 15(a)
5.27 problem 15(b)
5.28 problem 15(c)
5.29 problem 15(d)
5.30 problem 15(e)
5.31 problem 15(f)
5.32 problem 16-b(i)
5.33 problem 16-b(ii)
5.34 problem 16-b(iii)
5.35 problem 16-b(iv)
5.36 problem 16-b(v)
5.37 problem 16-b(vi)