84.3 Chapter 2. Solutions. Solved problems page 5

84.3.1 problem 2.1
84.3.2 problem 2.2
84.3.3 problem 2.3
84.3.4 problem 2.4
84.3.5 problem 2.5
84.3.6 problem 2.6
84.3.7 problem 2.7
84.3.8 problem 2.8