Exercise 1.1

• Question no 1 12:51
• Question no 2 6:48
• Question no 3 9:56
• Question no 4 7:03
• Question no 5 5:29

Exercise 1.2

• Question no 1 and 3 8:18
• Question no 4 7:16
• Question no 5 and 6 10:46
• Question no 7 and 8 11:48
• Question no 9 6:58

Exercise 1.3

• Question no 1 and 2 14:51
• Question no 3 5:47
• Question no 4 11:55

Exercise 1.4

• Question no 3 and 4 14:14
• Question no 5 and 6 7:08
• Question no 7 6:30
• Question no 8 6:47
• Question no 10 4:25

Exercise 1.5

• Question no 1 to 3 19:45
• Question no 4 to 6 19:42
• Question no 7 to 10 19:16
• Question no 11 and 12 10:34