设y=√(x^2-1)求dy/dx

设y=√(x^2-1)求dy/dx 设y=sin2x/(1+x^2),求dy/dx, 设y=sin2x/(1+x^2),求dy/dx, 设y=（x/1-x)^x,求dy/dx 设x^2+y^2=4,求dy/dx 设y=(1-x)³cosx,求dy/dx 设y=(tan2x)^cot(x/2) ,求dy/dx 设y-x-1/2sinx,则dx/dy= 设y=2arctany/x,求dy/dx,dy^2/d^2x. 设 x/y=ln(y/x) ,求 dy/dx 设y=cos(2x^2+x+1) 求dy/dx. 过程 设y=sin(3x^[2]+[5]x+1),求dy/dx. 数学题求dy/dx设 f'(x)=sin√x 定义（x>0）,又y=f[e^(2x)]求dy/dx 设函数y=sin(2x²+1),求dy/dx,d²y/dx² 设y＝sin2x＋√〔1+2x〕+e³,求dy/dx 设x=t^2+cost,y=1-sint,求dy/dx 设x=4t y=t^2+1 求dy/dx 设X^2+Y^2-XY=1,求dy/dx