The differential equation $\frac{d y}{d x}+P y=Q y^n$, $n>2$ can be reduced to linear form by substituting
Answer & explanation
Correct answer: option 4
We have, $\frac{1}{y^n} \frac{d y}{d x}+P \frac{1}{y^{n-1}}=Q$
It reduces to linear form by substituting $\frac{1}{y^{n-1}}=z$