已知x=y^2-4y,求dy/dx

已知x=y^2-4y,求dy/dx 已知y=x^cosx/2,求dy/dx, 已知y=x^(1/y),求dy/dx? 已知y=sinx^2求dy/dx^3 dy/dx^4要详细过程 已知x^y-y^x=2确定函数y=fx,求dy/dx 设x^2+y^2=4,求dy/dx 已知y=x∧x,求dy/dx x^y-y^x=2,求dy/dx 求dy/dx=(x-y+5)/(x+y-2) 已知y=cos^4(2x+π/3),求dy/dx 已知dy/dx=xe^x求y的通解 matlab已知arctan(x/y)=log(x^2+y^2),求dx/dy (4y^3-x)dy/dx=y 求通解 x^2+y^2=e^y求dy/dx 求dy/dx=x/y+(cosx/y)^2通解 (x^2)dy+（y^2)dx=dx-dy 已知dx/dy=1/y′,求d（2）y/d x^2? (dy/dx)-y=x求微分方程