dy/dx=1/xsin²(xy)怎么算?
(1+x*x)dy=(1+xy)dx y|x=0=1怎么算
dy/dx=xy/(1+x^2)的通解怎么算?
dx/dy+xy=-1,求通解
微分方程x*dy/dx+y=xy*dy/dx怎么做
(2xsin(y/x)-ycos(y/x))dx+(xcos(y/x)+1)dy=0 求y
求高数中微分方程通解 (1+x2)dy=(1+xy)dx
(1-x^2)dy/dx+xy=1
x^2+xy+y^3=1,求dy/dx
dy/dx=1+x+y^2+xy^2
设x=ln(1+t²) y=t-arctant 求dy/dx d²y/dx²
微积分,求方程通解求方程(3x²+6xy²)dx+(6x²y+4y²)dy=0的
dy/dx=xy的通解