engineering recuitment ISRO Scientific Assistant Physics 2020 Mathematics Differential Equations Formation of a Differential Equation
The differential equation of all parabolas whose axis is y-axis is
1
\(\rm x \dfrac{d^2y}{dx^2}-\dfrac{dy}{dx}=0\)
2
\(\rm x \dfrac{d^2y}{dx^2}+\dfrac{dy}{dx}=0\)
3
\(\rm \dfrac{d^2y}{dx^2}-y=0\)
4
\(\rm \dfrac{d^2y}{dx^2}-\dfrac{dy}{dx}=0\)