The curve represented by the differential equation xdy-ydx=ydy intersects the y axis at A(0,1) and the line y=e at (a,b), then find a+b

The differential equation (x+y)dx+xdy=0 is

[" The curve represented by the "],[DExdy-ydx=ydy" intersect "y" - axis "],[" at "(0,1)" and the line "y=e" at "(a,b)" then the "],[" value of "a+b" is "]

Solution of the differential equation xdy-ydx=0 represents

Solution of the differential equation xdy+ydx=0 represents a

Solution of the differential equation xdy - ydx =0 represents a

The solution of differential equation xdy-ydx=0 represents

The solution of the differential equation (1+xy)xdy+(1-xy)ydx=0 ,is