engineering recuitment GATE EE 2023-24 Test Series Engineering Mathematics Differential Equations Non Exact Differential Equations
An integrating factor of the differential equation \(\left( {y + \frac{{{y^3}}}{3} + \frac{{{x^2}}}{2}} \right)dx + \frac{1}{4}\left( {x + x{y^2}} \right)dy = 0\) is:
1
x2
2
3 lnx
3
x3
4
2 lnx