Q3 Write an integrating factor of each of the following linear differential equation

1. x
   dy / dx
   - y=2x²,x>0
2. 2x
   dx / dy
   +y =6x³ +5,x>0
3. dy / dx
   +2ytanx =sinx
4. x
   dy / dx
   +y-xy cotx=0

Solution

,,,,,