Q4 Write an integrating factor of each of the following linear differential equation

1. y dx - (x + 2y²) dy = 0, y > 0
2. y e^y dx = (y³ + 2x e^y) dy, y≠0
3. dx + x dy = (e^-y log y) dy,y > 0
4. (1 - y²)
   dx / dy
   + yx = ay, |y|< 1

Solution

,,,,,