NDA2017MathematicsDifferential EquationsActual
What is the general solution of the differential equation y d x- (x+2 y^2 ) d y=0 ?
Options
- Ax=y^2+c y
- Bx =2 cy ^2
- Cx=2 y^2+c y
- DNone of the above
Correct answer
C. x=2 y^2+c y
Step-by-step solution
aligned & y d x- (x+2 y^2 ) d y=0 & y d x-x d y-2 y^2 d y=0 & y-x d y d x =2 y^2 d y d x & y-x d y d x y^2 =2 d y d x aligned Integrating aligned & x y =2 y+c & x=2 y^2+c y aligned