1.1 problem 1(a)
1.2 problem 1(b)
1.3 problem 1(c)
1.4 problem 1(d)
1.5 problem 1(e)
1.6 problem 1(f)
1.7 problem 1(g)
1.8 problem 1(h)
1.9 problem 1(i)
1.10 problem 1(j)
1.11 problem 2(a)
1.12 problem 2(b)
1.13 problem 2(c)
1.14 problem 2(d)
1.15 problem 2(e)
1.16 problem 2(f)
1.17 problem 2(g)
1.18 problem 2(h)
1.19 problem 2(i)
1.20 problem 2(j)
1.21 problem 2(k)
1.22 problem 2(L)
1.23 problem 2(m)
1.24 problem 2(n)
1.25 problem 2(o)
1.26 problem 2(p)
1.27 problem 2(q)