y=x^2-sin2x,则dy/dx

y=x^2-sin2x,则dy/dx y=e^x/x^2+sin2x 求dy/dx 设y=sin2x/(1+x^2),求dy/dx, 设y=sin2x/(1+x^2),求dy/dx, y=sin2x则dy/dx= 设y=x分子sin2x.求dx分子dy. 求函数y=(x^2+3x)^sin2x的导数dy/dx y=x*sin2x则,dy=? (x^2)dy+（y^2)dx=dx-dy 求函数y=3sin2x+4e^x的导数dy/dx ,微分dy y=[sin(x^4)]^2,则dy/dx=?,dy^2/dx^2=?,dy/d(x^2)=? 微分方程 dy/dx=(-2x)/y 反函数的二阶导数疑问设dy/dx=y',则dx/dy=1/y',应视为y的函数则d2x/dy2=d(dx/dy)/dy（定义）=d(1/(dy/dx)) / dy=d(1/(dy/dx))/dx * dx/dy（复合函数求导,x是中间变量）=-y''/(y')^2 * (1/y')=-y''/(y')^3d(1/(dy/dx))/dx * dx/dy 设y-x-1/2sinx,则dx/dy= dy/dx=x+y 设y=(sin2x)^x,求dy/dx最好过程能具体点啦 设y＝sin2x＋√〔1+2x〕+e³,求dy/dx y=x^2(√x-sin2x),求dy