Please do excercise on the following problems of Chap. 3: 3.1; 3.3; 3.5; 3.10; 3.13; 3.16; 3.17; 3.21; 3.23; 3.25 Chap. 4: 4.7; 4.9; 4.11; 4.13; 4.15; 4.17; 4.19 Chap. 5: 5.1; 5.3; 5.5; 5.7; 5.9