Exercise 2.1

• Exercise 2.1 Question no 1 16:47
• Exercise 2.1 Question no 2 31:25

Exercise 2.2

• Exercise 2.2 Question no 1 10:37
• Exercise 2.2 Question no 2 10:36

Exercise 2.3

• Exercise 2.3 Question no 1 40:01
• Exercise 2.3 Question no 2 35:41

Exercise 2.4

• Exercise 2.4 Question no 1 26:41
• Exercise 2.4 Question no 2 17:55

Exercise 2.5

• Exercise 2.5 Question no 1 20:00
• Exercise 2.5 Question no 2 29:55

Exercise 2.6

• Exercise 2.6 Question no 1 29:02
• Exercise 2.6 Question no 2 21:34

Exercise 2.7

• Exercise 2.7 Question no 1 (1 to 5) 29:33
• Exercise 2.7 Question no 1 (6 to 12) 39:52

Exercise 2.8

• Exercise 2.8 Question no 1 to 3 32:49
• Exercise 2.8 Question no 4 to 6 42:02
• Exercise 2.8 Question no 7 to 10 34:37

Exercise 2.9

• Exercise 2.9 Question no 1 and 2 20:46
• Exercise 2.9 Question no 3 and 4 17:11

Review Exercise

• Exercise Review Question 1 to 3 25:34
• Exercise Review Question 4 and 5 8:43