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1)
2)
Part (a):
Part (b):
3)
4)
Parts (a),(b) and (c):
Parts (d) and (e):
Part (f):
5)
Part (c):
Part (d):
6)
Parts (a) and (b):
Part (c) - Method 1:
Part (c) - Method 2:
7)
Part (e):