y'=(y^3+2x^2y)/(3x^3+2xy^2)求此微分方程通解或特解?
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y''=(y^3+2x^2y)/(3x^3+2xy^2)求此微分方程通解或特解?y''=(y^3+2x^2y)/(3x^3+2xy^2)求此微分方程通解或特解?y''=(y^3+2x^2y)/(3x^3+2
y'=(y^3+2x^2y)/(3x^3+2xy^2)求此微分方程通解或特解?
y'=(y^3+2x^2y)/(3x^3+2xy^2)求此微分方程通解或特解?
y'=(y^3+2x^2y)/(3x^3+2xy^2)求此微分方程通解或特解?
(x-y) (x-2y)+(x+2y) (x-3y)-2(x-3y) (x-4y)=
(x+y)(x-y)+(x-y)平方-(x-y)(3x-y) 其中x=-2 y=3分之一
已知x-y/x+y=3,求代数式5(x-y)/x+y-x+y/2(x-y)
(x+y)(2x-3y)=?
【2(x-y)^3-8(x-y)^2(x+y)+6y(x-y)^2】/2(x-y)^2=
已知x-y=3,求[(x+y)(x-y)-(x-y)^2+2y(x-y)]除以的值
已知3x =2y 求x/x+y+y/x-y-y²/x²-y²
x(x-y)2-(y-x)3
计算:y(x-y)^2+(y-x)^3=?
y'=(2x+y)/(3x-y)微分方程通解
12y(x-y)^2-8(x-y)^3=?
[(3x+y)(x-y)-(2x+3y)(x-y)]*(x-y)
计算:x+2y/x-y+2x/y-x-3y/x-y
化简:(x-3y)(x+y)-(x-2y)(x+2y)-(x-y)平方
若2/x-1/y=3,求[y/x-y/x-y(x-y/x-x+y)]/x-2y/x的值
3x+y=2 -y/x+y=123x+y=2 (-y/x)+y=12
[2/3x-2/x+y(x+y/3x-x-y)]/x-y/x
化简:{2/3x-2/(x+y)[(x+y)/3x-x-y]}/(x+y)/x