engineering recuitment ISRO Scientific Assistant Physics 2020 Mathematics Differential Equations Formation of a Differential Equation
उन सभी परवलय का अवकल समीकरण क्या है जिसका अक्ष y - अक्ष है?
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
\(\rm \dfrac{d^2y}{dx^2}-\dfrac{dy}{dx}=0\)