In this Lecture we have discussed the following Important Things 1) How to Solve Non Exact Differential Equations by Using Integrating Factor(I.F) 2) Mathematical Method by S.M Yusaf Exercise 9.5 Question no. 11,12,13,14,15,16 and 18 To study more exciting lectures, please follow the following link: • Ch# 9 | Degree and Order of Differential E...