Family of curves $y=A x+A^3$ is represented by the differential equation of degree
Answer & explanation
Correct answer: option 1
We have,
$y=A x+A^3 \Rightarrow \frac{d y}{d x}=A$
On eliminating A, we get
$y=x \frac{d y}{d x}+\left(\frac{d y}{d x}\right)^3$
Clearly, it is a differential equation of degree 3.