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

(i)y dx − (x + 2y²) dy = 0, y > 0
(ii) y e^y dx = (y³ + 2x e^y) dy, y ≠ 0
(iii) dx +xdy=(e^-ylog y)dy,y>0

(iv) (1-y²)dx/dy +yx=ay,|y|< 1

Solution