1.求dy/dx-2y/(x+1)=(x+1)^(5/2)的通解 2.求y-(3x+y^4)dy/dx=0的通解 两题都求具体过程!

y=f[(x-1)/(x+1)],f'(x)=arctanx^2,求dy/dx,dy 设y=√(x^2-1)求dy/dx x^2+xy+y^3=1,求dy/dx 求dy/dx-2y/x=1的通解 设y=sin2x/(1+x^2),求dy/dx, 设y=sin2x/(1+x^2),求dy/dx, 求dy/dx y=e^(2x+1) 设y=（x/1-x)^x,求dy/dx x^y-y^x=2,求dy/dx 求dy/dx=(x-y+5)/(x+y-2) 求方程 dy/dx+x(y-x) +x^3(y-x)^2=1的通解~ (x^2)dy+（y^2)dx=dx-dy y=2x^2+x求dy/dx dx/dy=1/y',求d^2x/dy^2 .为什么d^2x/dy^2不等于dx/dy求导?一个是二阶导数,一个是一阶导数 x=sin(y/x)+e^2 求dy/dx y=e^x/x^2+sin2x 求dy/dx (dy/dx)-y=x求微分方程 y=(sinx)^x 求DY/DX