13 March 2013 14:10

lecture 3 Page 1

lecture 3 Page 2

lecture 3 Page 3

13 March 2013 15:25

lecture 3 Page 4

lecture 3 Page 5

lecture 3 Page 6

13 March 2013 16:04

lecture 3 Page 7

13 March 2013 16:20

lecture 3 Page 8

lecture 3 Page 9