设y＝2x＋x^2e^x,求dy

设y=[e^x+e^(-x)]^2,求dy 设y＝2x＋x^2e^x,求dy 设y=cos(x^2+e^x)求dy 设y=x^2*e^sinx,求dy. 设y=e^1-2x sinx,求dy 设y=e^cos^2*1/x,求dy 设y＝sin2x＋√〔1+2x〕+e³,求dy/dx y=e^-x^2,求dy 设y=(2+x)^x,(x>0) ,求dy 设函数y=e^2x+cos x求倒数y'与微分dy 设y=f(sinx)+e^x^2,f'(x)存在,求y'及dy 设函数y=y(x)由方程y+e^(x+y)=2x确定,求dx/dy 设siny+e^3x-2x^3y^2=0,求dy/dx 设y=cos根号下x,减去e的负2x方,求dy 设y=cos√x - e^(-2x) 求dy, 设y=e^(-x) cos 1/x,求dy. 设x=e^-t y=e^-2t 求dy/dx x=sin(y/x)+e^2 求dy/dx