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

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.

方程dfrac (dy)(dx)=dfrac (2y+x)(x)的通解为dfrac (dy)(dx)=dfrac (2y+x)(x)。方程的通解为。

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)