If cos²x is an integrating factor of the differential equation dy/dx + Py = Q, then P can be

The integrating factor is a function used to solve linear differential equations. It helps convert a non-exact equation into an exact one. For first-order linear differential equations, the integrating factor simplifies the process of finding the solution by making the equation easier to integrate and solve.

Class 12 Maths Chapter 9 on Differential Equations focuses on understanding the relationship between a function and its derivatives. It includes methods for solving first-order and higher-order differential equations. Real-world applications such as motion and growth are explored. This chapter is important for the CBSE Exam 2024-25 and helps in solving practical problems.