The solution to homework #02

[6.1] #2	[6.1] #10	[6.2] #1,4	[6.2] #4(cont)	[6.5] #4	[6.5] #4(cont)
[8.1] #4	[8.4] #4	[8.4] #4(cont)	[10.2] #6	[10.2] #6(cont)	[10.2] #6(cont)
[6.5] #6