设x^2+y^2=4,求dy/dx

设x^2+y^2=4,求dy/dx 设y=√(x^2-1)求dy/dx 设y=(tan2x)^cot(x/2) ,求dy/dx 设y=sin2x/(1+x^2),求dy/dx, 设y=sin2x/(1+x^2),求dy/dx, 设y=2arctany/x,求dy/dx,dy^2/d^2x. 设x=4t y=t^2+1 求dy/dx 已知x=y^2-4y,求dy/dx 设y-x-1/2sinx,则dx/dy= 设 x/y=ln(y/x) ,求 dy/dx 设siny+e^3x-2x^3y^2=0,求dy/dx 设y=cos(2x^2+x+1) 求dy/dx. 过程 设f x 为可导函数,y=f^2(x+arctanx),求dy/dx 设y=sin(3x^[2]+[5]x+1),求dy/dx. 设y=（x/1-x)^x,求dy/dx (x^2)dy+（y^2)dx=dx-dy x^y-y^x=2,求dy/dx 求dy/dx=(x-y+5)/(x+y-2)