设y=(x比1+x)求dy 比dx

设y=(x比1+x)的x次方,求dy 比dx 设y=(x比1+x)求dy 比dx 设y=（x/1-x)^x,求dy/dx 设y=√(x^2-1)求dy/dx 设y=sin2x/(1+x^2),求dy/dx, 设y=(1-x)³cosx,求dy/dx 设y=sin2x/(1+x^2),求dy/dx, 设 x/y=ln(y/x) ,求 dy/dx 设X^y=Y^x, 求dy/dx|x=1： 设（X=TCOST,Y=TSINT,求DY/DX 设sin(x+y)=xy,求dy/dx. 设y=(tan2x)^cot(x/2) ,求dy/dx 设y=x分子sin2x.求dx分子dy. 设x+y=siny,求dy/dx 设x^2+y^2=4,求dy/dx y=ln|x|则dy比dx等于? 设y=2arctany/x,求dy/dx,dy^2/d^2x. 设xy+㏑y+㏑x=1,求dy/dx∣x=1