设y=sin[x/(1=x)]求dy设y=sin[x/(1=x)]求dy 设y=sin[x/(1+x)]求dy 加号

设sin(x+y)=xy,求dy/dx. 设Y=lnx+sin x分之1.求dy 设y=sin[x/(1=x)]求dy设y=sin[x/(1=x)]求dy 设y=sin[x/(1+x)]求dy 加号 设y=sin x/1+x^2,求y’及dy 设y=arcsin(sin²1/x）,求dy.设y=arcsin(sin^2 1/x）,求dy. 设y=（x/1-x)^x,求dy/dx 设y=(lnx)/x,求dy? 设y=sin(3x^[2]+[5]x+1),求dy/dx. 设y=y(x)由方程cos(x+y)+y=1,求dy/dx我做到-sin(x+y)*(x+y)'+y'=0 设y=ln(x/1+x)-cot2x,求dy. 设y=(1/x)^x,求dy 设y=e^(-x) cos 1/x,求dy. 设sin(x²+y)=x,求隐函数y的微分dy 设sin（x^2+y）=x,求隐函数y的微积分dy 设 x/y=ln(y/x) ,求 dy/dx 设函数 y = cos2x / (x-1) 求 dy 设y=√(x^2-1)求dy/dx 设y=sin2x/(1+x^2),求dy/dx,