Exercise 3.1

• Question no 1 12:55
• Question no 2 and 3 23:09
• Question no 4 and 5 10:25
• Question no 6 to 8 17:06

Exercise 3.2

• Question no 1 to 3 24:22
• Question no 4 9:22
• Question no 5 and 6 9:24
• Question no 7 10:59

Exercise 3.3

• Question no 1 and 2 18:29
• Question no 3 and 4 13:11
• Question no 5 and 6 15:26