1.求下列齐次方程的通解:-|||-(1) '-y-sqrt ({y)^2-(x)^2}=0;-|||-(2) dfrac (dy)(dx)=yln dfrac (y)(x);-|||-(3) ((x)^2+(y)^2)dx-xydy=0;-|||-(4) ((x)^3+(y)^3)dx-3x(y)^2dy=0;-|||-(5) (2xsin dfrac (y)(x)+3ycos dfrac (y)(x))dx-3xcos dfrac (y)(x)dy=0;-|||-(6) (1+2(e)^dfrac (x{y)})dx+2(e)^dfrac (x{y)}(1-dfrac (x)(y))dy=0.

1.求下列齐次方程的通解:-|||-(1) -y-sqrt ({y)^2-(x)^2}=0;-|||-(2) dfrac (dy)(dx)=yln dfrac

1.求下列齐次方程的通解:-|||-(1) -y-sqrt ({y)^2-(x)^2}=0;-|||-(2) dfrac (dy)(dx)=ycdot dfra

1.求下列齐次方程的通解:-|||-(1) -y-sqrt ({y)^2-(x)^2}=0;

求微分方程dfrac (dy)(dx)=dfrac (y-sqrt {{x)^2+(y)^2}}(x)的通解.(此题总分值6分)求微分方程的通解.

1.求下列齐次方程的通解：(1)xy-y-sqrt(y^2)-x^(2)=0;(3)（x^2+y^2)dx-xydy=0;(5)(2xsin(y)/(x)+3y

求方程 dfrac (dy)(dx)=dfrac (x+2y+1)(2x+4y-1) 的通解.

1.求下列微分方程的通解:-|||-(1) dfrac (dy)(dx)+y=(e)^-x ;-|||-(2) +y=(x)^2+3x+2;-|||-(3) +

1.求下列微分方程的通解:-|||-(1) dfrac (dy)(dx)+y=(e)^-x =-|||-(2) +y=(x)^2+3x+2 =-|||-(3)

1.求下列微分方程的通解:-|||-(1) dfrac (dy)(dx)+y=(e)^-x :-|||-(2) +y=(x)^2+3x+2 ;-|||-(3)

(4)齐次方程 dfrac (dy)(dx)=-dfrac (4x+3y)(x+y) 的通解是 ()-|||-(A) ln (y+2x)+dfrac (x)