Teaching DSSSB TGT Mock Test 2025 Mathematics Differential Equations Application of Differential Equations
फलन u(x, y) = c क्या है जो अवकल समीकरण x(dx - dy) + y(dy - dx) = 0 को संतुष्ट करता है?
1
\(\rm x^2+y^2=xy+c\)
2
\(\rm x^2+y^2 =4xy+c\)
3
\(\rm x^2-y^2=xy+c \)
4
\(\rm x^2 -y^2=2xy+c\)