Question 3 - A-Level Maths

Exam Board	Edexcel
Module	FP2 (Further Pure Mathematics 2)
Year	2015
Session	June
Topic	First order differential equations (integrating factor)

Find, in the form $y = \mathrm { f } ( x )$, the general solution of the differential equation

$$\tan x \frac { \mathrm {~d} y } { \mathrm {~d} x } + y = 3 \cos 2 x \tan x , \quad 0 < x < \frac { \pi } { 2 }$$