Question

Integrating factor of $(1+2y^3)\frac{dy}{dx}=y^2$ is:

• A. $e^{1/y}$
• B. $e^{-1/y}$
• C. $-\frac{1}{y}$
• D. Not solvable for I.F.

Answer 1

The correct option is D Not solvable for I.F.

$\left[\frac{1+2y^3}{y^2}\right]dy=dx$
Since there is no coefficient of y, So this is not solvable for integrating factor.