Do the following questions attached .
2.6.2, 6.1.1, 6.1.4, 6.2.1, 6.2.4, 6.3.1, 6.3.4, 6.4.2, 6.4.3
Do the following questions attached .
2.6.2, 6.1.1, 6.1.4, 6.2.1, 6.2.4, 6.3.1, 6.3.4, 6.4.2, 6.4.3
