3x^2+4y^2-1=0,求dy/dx
x^2+xy+y^3=1,求dy/dx
3x^2+4y^2-1=0,求dy/dx
求方程(2x+y-4)dx+(x+y-1)dy=0的通解.
Y=2-sinx.求dy/dx及dy/dx|x=0
y^2+xy+3x=9求:dy/dx,于是得到2y dy/dx+1 y+dy/dx+3=0,我不明白怎将y看成x的函数?
下面都是求微分方程的通解:1、(y^-2xy)dx+x^2dy=0 2、(x^2+y^2)dy/dx=2xy 3、xy’
设x^2+y^2=4,求dy/dx
求dx+(x+y^2)dy=0的通解
dy/dx 3x^2+4y^3-2x-5y+1=0
y=1(2x+1) 求dy/dx
设y=sin2x/(1+x^2),求dy/dx,
求dy/dx y=e^(2x+1)