(5y-1/0.3)-(0.3y-0.12/0.02)=1 求y
求y''=1+y'^2通解...
求微分方程通解y"=1+y'*y
y·y''=1+y'^2求通解
y*y''+1=y'^(2),求通解.
y''+y'=y'y x=2时,y=x,y'=1/2,求通解
x=5,y=110{x=y/x; y=y-x;}while(y>=1); 求x y
已知x=1/3,y=-1/2,求代数式x-(x+y)+(x+2y)-(x+3y)+(x+4y)-(x+5y)+...-(
求多项式y^3+5-12y^2+2-3y^2-2分之1y^3-y^2的值,其中y=-1
求下列微分方程的通解或特解:(1) 3y''-2y'-8y=0 (2) 4y"-8y'+5y=0
已知x²+y²+5=2x+4y,求【2x²-(x-y)(x-y)】【(x+y-1)(x-y
解方程:3y^2-(2y+1)(y-1)=(y-5)(y+1)
解方程3y^2-(2y+1)(y-2)=(y-5)(y-1)